What rule hath God given to direct us how we may glorify and enjoy him?
The Word of God, which is contained in the Scriptures of the Old and New Testaments,1 is the only rule to direct us how we may glorify and enjoy him.2
Scripture proofs
The Westminster Assembly's proof texts (KJV). The bracketed numbers in the answer above mark the clause each set of references supports; expand a row to read the verses.
1 Matt. 19:4-5 with Gen. 2:24; Luke 24:27, 44; 1 Cor. 2:13; 14:37; 2 Pet.1:20-21; 3:2, 15-16
Matt. 19:4 And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female,
Matt. 19:5 And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?
Gen. 2:24 Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
Luke 24:27 And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.
Luke 24:44 And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me.
1 Cor. 2:13 Which things also we speak, not in the words which man’s wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
1 Cor. 14:37 If any man think himself to be a prophet, or spiritual, let him acknowledge that the things that I write unto you are the commandments of the Lord.
2 Pet. 1:20 Knowing this first, that no prophecy of the scripture is of any private interpretation.
2 Pet. 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.
2 Pet. 3:2 That ye may be mindful of the words which were spoken before by the holy prophets, and of the commandment of us the apostles of the Lord and Saviour:
2 Pet. 3:15 And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you;
2 Pet. 3:16 As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
2 Deut. 4:2; Ps. 19:7-11; Isa. 8:20; John 15:11; 20:30-31; Acts 17:11; 2 Tim. 3:15-17; 1 John 1:4
Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you.
Ps. 19:7 The law of the LORD is perfect, converting the soul: the testimony of the LORD is sure, making wise the simple.
Ps. 19:8 The statutes of the LORD are right, rejoicing the heart: the commandment of the LORD is pure, enlightening the eyes.
Ps. 19:9 The fear of the LORD is clean, enduring for ever: the judgments of the LORD are true and righteous altogether.
Ps. 19:10 More to be desired are they than gold, yea, than much fine gold: sweeter also than honey and the honeycomb.
Ps. 19:11 Moreover by them is thy servant warned: and in keeping of them there is great reward.
To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
John 15:11 These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.
John 20:30 And many other signs truly did Jesus in the presence of his disciples, which are not written in this book:
John 20:31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.
These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.
2 Tim. 3:15 And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
2 Tim. 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
2 Tim. 3:17 That the man of God may be perfect, throughly furnished unto all good works.
And these things write we unto you, that your joy may be full.
This doctrine across the Standards
Where the Confession and the Westminster Larger Catechism treat the same matter, so the question can be studied alongside its parallel statements.
In the Westminster Confession
I.1 Although the light of nature, and the works of creation and providence, do so far manifest the goodness, …
Although the light of nature, and the works of creation and providence, do so far manifest the goodness, wisdom, and power of God, as to leave men inexcusable; yet are they not sufficient to give that knowledge of God, and of his will, which is necessary unto salvation; therefore it pleased the Lord, at sundry times, and in divers manners, to reveal himself, and to declare that his will unto his Church; and afterwards, for the better preserving and propagating of the truth, and for the more sure establishment and comfort of the Church against the corruption of the flesh, and the malice of Satan and of the world, to commit the same wholly unto writing; which maketh the holy Scripture to be most necessary; those former ways of God's revealing his will unto his people being now ceased.
→ I.1 · Of the Holy ScriptureI.6 The whole counsel of God, concerning all things necessary for his own glory, man's salvation, faith, and life, …
The whole counsel of God, concerning all things necessary for his own glory, man's salvation, faith, and life, is either expressly set down in Scripture, or by good and necessary consequence may be deduced from Scripture: unto which nothing at any time is to be added, whether by new revelations of the Spirit, or traditions of men. Nevertheless we acknowledge the inward illumination of the Spirit of God to be necessary for the saving understanding of such things as are revealed in the Word; and that there are some circumstances concerning the worship of God, and government of the Church, common to human actions and societies, which are to be ordered by the light of nature and Christian prudence, according to the general rules of the Word, which are always to be observed.
→ I.6 · Of the Holy ScriptureI.2 Under the name of holy Scripture, or the Word of God written, are now contained all the books …
Under the name of holy Scripture, or the Word of God written, are now contained all the books of the Old and New Testaments, which are these: Of the Old Testament: Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua, Judges, Ruth, 1 Samuel, 2 Samuel, 1 Kings, 2 Kings, 1 Chronicles, 2 Chronicles, Ezra, Nehemiah, Esther, Job, Psalms, Proverbs, Ecclesiastes, The Song of Songs, Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi; Of the New Testament: The Gospels according to Matthew, Mark, Luke, John. The Acts of the Apostles, Paul's Epistles to the Romans, 1 Corinthians, 2 Corinthians, Galatians, Ephesians, Philippians, Colossians, 1 Thessalonians, 2 Thessalonians, 1 Timothy, 2 Timothy, Titus, Philemon, The Epistle to the Hebrews, The Epistle of James, The First and Second Epistles of Peter, The First, Second, and Third Epistles of John, The Epistle of Jude, The Revelation. All which are given by inspiration of God, to be the rule of faith and life.
→ I.2 · Of the Holy ScriptureI.3 The books commonly called Apocrypha, not being of divine inspiration, are no part of the Canon of the …
The books commonly called Apocrypha, not being of divine inspiration, are no part of the Canon of the Scripture; and therefore are of no authority in the Church of God, nor to be any otherwise approved, or made use of, than other human writings.
→ I.3 · Of the Holy ScriptureI.4 The authority of the holy Scripture, for which it ought to be believed and obeyed, dependeth not upon …
The authority of the holy Scripture, for which it ought to be believed and obeyed, dependeth not upon the testimony of any man or church, but wholly upon God (who is truth itself), the Author thereof; and therefore it is to be received, because it is the Word of God.
→ I.4 · Of the Holy ScriptureI.5 We may be moved and induced by the testimony of the Church to an high and reverent esteem …
We may be moved and induced by the testimony of the Church to an high and reverent esteem of the holy Scripture; and the heavenliness of the matter, the efficacy of the doctrine, the majesty of the style, the consent of all the parts, the scope of the whole (which is to give all glory to God), the full discovery it makes of the only way of man's salvation, the many other incomparable excellencies, and the entire perfection thereof, are arguments whereby it doth abundantly evidence itself to be the Word of God; yet, notwithstanding, our full persuasion and assurance of the infallible truth, and divine authority thereof, is from the inward work of the Holy Spirit, bearing witness by and with the Word in our hearts.
→ I.5 · Of the Holy ScriptureI.7 All things in Scripture are not alike plain in themselves, nor alike clear unto all; yet those things …
All things in Scripture are not alike plain in themselves, nor alike clear unto all; yet those things which are necessary to be known, believed, and observed, for salvation, are so clearly propounded and opened in some place of Scripture or other, that not only the learned, but the unlearned, in a due use of the ordinary means, may attain unto a sufficient understanding of them.
→ I.7 · Of the Holy ScriptureI.8 The Old Testament in Hebrew (which was the native language of the people of God of old), and …
The Old Testament in Hebrew (which was the native language of the people of God of old), and the New Testament in Greek (which at the time of the writing of it was most generally known to the nations), being immediately inspired by God, and by his singular care and providence kept pure in all ages, are therefore authentical; so as in all controversies of religion the Church is finally to appeal unto them. But because these original tongues are not known to all the people of God who have right unto, and interest in the Scriptures, and are commanded, in the fear of God, to read and search them, therefore they are to be translated into the vulgar language of every nation unto which they come, that the Word of God dwelling plentifully in all, they may worship him in an acceptable manner, and, through patience and comfort of the Scriptures, may have hope.
→ I.8 · Of the Holy ScriptureI.9 The infallible rule of interpretation of Scripture is the Scripture itself; and therefore, when there is a question …
The infallible rule of interpretation of Scripture is the Scripture itself; and therefore, when there is a question about the true and full sense of any scripture (which is not manifold, but one), it must be searched and known by other places that speak more clearly.
→ I.9 · Of the Holy ScriptureI.10 The Supreme Judge, by which all controversies of religion are to be determined, and all decrees of councils, …
The Supreme Judge, by which all controversies of religion are to be determined, and all decrees of councils, opinions of ancient writers, doctrines of men, and private spirits, are to be examined, and in whose sentence we are to rest, can be no other but the Holy Spirit speaking in the Scripture.
→ I.10 · Of the Holy ScriptureIn the Westminster Larger Catechism
Q.1 What is the chief and highest end of man?
Man's chief and highest end is to glorify God, and fully to enjoy him forever.
→ Open Q.1Q.2 How doth it appear that there is a God?
The very light of nature in man, and the works of God, declare plainly that there is a God; but his word and Spirit only do sufficiently and effectually reveal him unto men for their salvation.
→ Open Q.2Q.3 What is the word of God?
The holy scriptures of the Old and New Testaments are the word of God, the only rule of faith and obedience.
→ Open Q.3Q.5 What do the scriptures principally teach?
The scriptures principally teach, what man is to believe concerning God, and what duty God requires of man.
→ Open Q.5Q.4 How doth it appear that the scriptures are the word of God?
The scriptures manifest themselves to be the word of God, by their majesty and purity; by the consent of all the parts, and the scope of the whole, which is to give all glory to God; by their light and power to convince and convert sinners, to comfort and build up believers unto salvation: but the Spirit of God bearing witness by and with the scriptures in the heart of man, is alone able fully to persuade it that they are the very word of God.
→ Open Q.4