What do we pray for in the third petition?

Prayer is an offering up of our desires unto God, in the name of Christ, by the help of his Spirit; with confession of our sins, and thankful acknowledgment of his mercies.

God only being able to search the hearts, hear the requests, pardon the sins, and fulfil the desires of all; and only to be believed in, and worshiped with religious worship; prayer, which is a special part thereof, is to be made by all to him alone, and to none other.

To pray in the name of Christ is, in obedience to his command, and in confidence on his promises, to ask mercy for his sake; not by bare mentioning of his name, but by drawing our encouragement to pray, and our boldness, strength, and hope of acceptance in prayer, from Christ and his mediation.

The sinfulness of man, and his distance from God by reason thereof, being so great, as that we can have no access into his presence without a mediator; and there being none in heaven or earth appointed to, or fit for, that glorious work but Christ alone, we are to pray in no other name but his only.

We not knowing: What to pray for as we ought, the Spirit helps our infirmities, by enabling us to understand both for whom, and: What, and: How prayer is to be made; and by working and quickening in our hearts (although not in all persons, nor at all times, in the same measure) those apprehensions, affections, and graces which are requisite for the right performance of that duty.

We are to pray for the whole church of Christ upon earth; for magistrates, and ministers; for ourselves, our brethren, yea, our enemies; and for all sorts of men living, or that shall live hereafter; but not for the dead, nor for those that are known to have sinned the sin unto death.

We are to pray for all things tending to the glory of God, the welfare of the church, our own or others good; but not for anything that is unlawful.

We are to pray with an awful apprehension of the majesty of God, and deep sense of our own unworthiness, necessities, and sins; with penitent, thankful, and enlarged hearts; with understanding, faith, sincerity, fervency, love, and perseverance, waiting upon him, with humble submission to his will.

The whole word of God is of use to direct us in the duty of prayer; but the special rule of direction is that form of prayer which our Savior Christ taught his disciples, commonly called The Lord's prayer.

The Lord's prayer is not only for direction, as a pattern, according to which we are to make other prayers; but may also be used as a prayer, so that it be done with understanding, faith, reverence, and other graces necessary to the right performance of the duty of prayer.

The Lord's prayer consists of three parts; a preface, petitions, and a conclusion.

The preface of the Lord's prayer (contained in these words, Our Father which art in heaven,) teacheth us, when we pray, to draw near to God with confidence of his fatherly goodness, and our interest therein; with reverence, and all other childlike dispositions, heavenly affections, and due apprehensions of his sovereign power, majesty, and gracious condescension: as also, to pray with and for others.