What is the invisible church?

The catholic or universal Church, which is invisible, consists of the whole number of the elect, that have been, are, or shall be gathered into one, under Christ the head thereof; and is the spouse, the body, the fulness of him that filleth all in all.

The visible Church, which is also catholic or universal under the gospel (not confined to one nation as before under the law) consists of all those, throughout the world, that profess the true religion, and of their children; and is the kingdom of the Lord Jesus Christ, the house and family of God, out of which there is no ordinary possibility of salvation.

Unto this catholic visible Church Christ hath given the ministry, oracles, and ordinances of God, for the gathering and perfecting of the saints, in this life, to the end of the world: and doth by his own presence and Spirit, according to his promise, make them effectual thereunto.

This catholic Church hath been sometimes more, sometimes less visible. And particular churches, which are members thereof, are more or less pure, according as the doctrine of the gospel is taught and embraced, ordinances administered, and public worship performed more or less purely in them.

The purest churches under heaven are subject both to mixture and error; and some have so degenerated as to become no churches of Christ, but synagogues of Satan. Nevertheless, there shall be always a Church on earth to worship God according to his will.

There is no other Head of the Church but the Lord Jesus Christ: nor can the Pope of Rome, in any sense be head thereof; but is that Antichrist, that man of sin and son of perdition, that exalteth himself in the Church against Christ, and all that is called God.

All saints that are united to Jesus Christ their head, by his Spirit and by faith, have fellowship with him in his graces, sufferings, death, resurrection, and glory: and being united to one another in love, they have communion in each other's gifts and graces, and are obliged to the performance of such duties, public and private, as do conduce to their mutual good, both in the inward and outward man.

Saints, by profession, are bound to maintain an holy fellowship and communion in the worship of God, and in performing such other spiritual services as tend to their mutual edification; as also in relieving each other in outward things, according to their several abilities and necessities. Which communion, as God offereth opportunity, is to be extended unto all those who, in every place, call upon the name of the Lord Jesus.

This communion which the saints have with Christ, doth not make them in any wise partakers of the substance of his Godhead, or to be equal with Christ in any respect: either of which to affirm is impious and blasphemous. Nor doth their communion one with another, as saints, take away or infringe the title or propriety which each man hath in his goods and possessions.