2. How their accession to the church is described: They shall come to pray before the Lord and to seek the Lord of hosts (v. 21); and, to show that this is the main matter in which their conversion consists, it is repeated (v. 22): They shall come to seek the Lord of hosts in Jerusalem, and to pray before the Lord. No mention is made of their offering sacrifices, not only because these were not expected from the proselytes of the gate, but because, when the Gentiles should be brought in, sacrifice and offering should be quite abolished. See who are to be accounted converts to God and members of the church: and all that are converts to God are members of the church. (1.) They are such as seek the Lord of hosts, such as enquire for God their Maker, covet and court his favour, and are truly desirous to know his mind and will and sincerely devoted to his honour and glory. This is the generation of those that seek him. (2.) They are such as pray before the Lord,—such as make conscience, and make a business, of the duty of prayer,—such as dare not, would not, for all the world, live without it,—such as by prayer pay their homage to God, own their dependence upon him, maintain their communion with him, and fetch in mercy and grace from him. (3.) They are such as herein have an eye to the divine revelation and institution, which is signified by their doing this in Jerusalem, the place which God had chosen, where his word was, where his temple was, which was a type of Christ and his mediation, which all faithful worshippers will have a believing regard to.