{9} And had a wall great and high, and had {10} twelve gates, and at the gates {11} twelve angels, and names written thereon, which are the names of the twelve tribes of the children of Israel:

(9) A particular description of the celestial Church, first, by its essential parts, compared to a city down to verse 22, Re 21:12-22. Secondly, from the outside, to the end of the chapter Re 21:23-27. Thirdly, by the effects, in the beginning of the next chapter, the essential parts are noted the matter and the form in the whole work: of these the superstructure and foundation of the wall are entire parts (as they use to be called) which parts are first described in figure, to the 14th verse afterwards more exactly.

(10) According to the number of the tribes. For here the outward part is attributed to the Old Testament, and the foundation of the New Testament.

(11) He means the prophets, who are the messengers of God, and watchmen of the Church.

People's New Testament

21:12 Twelve gates. As many as there were tribes and apostles.

Twelve angels. As gate-keepers to prevent the unclean from entrance.

Names written thereon. The names of the twelve tribes of Israel. These were typical of the true Israel, the saints, and shows that all who belong to the true Israel will enter.

Wesley's Notes

21:12 Twelve angels - Still waiting upon the heirs of salvation.

Scofield Reference Notes

Margin angels

See Scofield Note: "Heb 1:4".

Jamieson-Fausset-Brown Bible Commentary

12. And-A and B omit. Eze 48:30-35, has a similar description, which implies that the millennial Jerusalem shall have its exact antitype in the heavenly Jerusalem which shall descend on the finally regenerated earth.

wall great and high-setting forth the security of the Church. Also, the exclusion of the ungodly.

twelve angels-guards of the twelve gates: an additional emblem of perfect security, while the gates being never shut (Re 21:25) imply perfect liberty and peace. Also, angels shall be the brethren of the heavenly citizens.

names of . twelve tribes-The inscription of the names on the gates implies that none but the spiritual Israel, God's elect, shall enter the heavenly city. As the millennium wherein literal Israel in the flesh shall be the mother Church, is the antitype to the Old Testament earthly theocracy in the Holy Land, so the heavenly new Jerusalem is the consummation antitypical to the spiritual Israel, the elect Church of Jews and Gentiles being now gathered out: as the spiritual Israel now is an advance upon the previous literal and carnal Israel, so the heavenly Jerusalem shall be much in advance of the millennial Jerusalem.

Matthew Henry's Concise Commentary

21:9-21 God has various employments for his holy angels. Sometimes they sound the trumpet of Divine Providence, and warn a careless world; sometimes they discover things of a heavenly nature of the heirs of salvation. Those who would have clear views of heaven, must get as near to heaven as they can, on the mount of meditation and faith. The subject of the vision is the church of God in a perfect, triumphant state, shining in its lustre; glorious in relation to Christ; which shows that the happiness of heaven consists in intercourse with God, and in conformity to him. The change of emblems from a bride to a city, shows that we are only to take general ideas from this description. The wall is for security. Heaven is a safe state; those who are there, are separated and secured from all evils and enemies. This city is vast; here is room for all the people of God. The foundation of the wall; the promise and power of God, and the purchase of Christ, are the strong foundations of the safety and happiness of the church. These foundations are set forth by twelve sorts of precious stones, denoting the variety and excellence of the doctrines of the gospel, or of the graces of the Holy Spirit, or the personal excellences of the Lord Jesus Christ. Heaven has gates; there is a free admission to all that are sanctified; they shall not find themselves shut out. These gates were all of pearls. Christ is the Pearl of great price, and he is our Way to God. The street of the city was pure gold, like transparent glass. The saints in heaven tread gold under foot. The saints are there at rest, yet it is not a state of sleep and idleness; they have communion, not only with God, but with one another. All these glories but faintly represent heaven.