Revelation 21:12

“And had a wall great and high, etc.] Not the Spirit of God, who separates, sanctifies, and preserves the saints, as Cocceius thinks, for this account respects not the church militant; nor the eternal decree of God, the unpassable gulf between heaven and hell, which everlastingly fixes the state of men; for this regards not the ultimate state of happiness: many interpreters understand it of the doctrine of the Gospel, which, as it secures the church now from heretics, and is like a wall very strong and well built, is durable and impregnable; and may be called “great”, because of the great Author of it, and the great things contained in it; and “high”, since it is not to be reached by carnal…”

“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 (Rev 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…”

“And had a wall great and high - Ancient cities were always surrounded with walls for protection, and John represents this as enclosed in the usual manner. The word “great” means that it was thick and strong. Its height also is particularly noticed, for it was unusual. See Revelation 21:16. And had twelve gates - Three on each side. The number of the gates correspond to the number of the tribes of the children of Israel, and to the number of the apostles. The idea seems to be that there would be ample opportunity of access and egress. And at the gates twelve angels - Stationed there as guards to the New Jerusalem. Their business seems to have been to watch the gates that nothing improper…”

“Twelve angels - Still waiting upon the heirs of salvation. Revelation 21:14”

“21:12-14 In this vision, the twelve tribes of Israel represent the redeemed people of God (see 7:4-8; see also Rom 9:6-7). The foundation for this community of God’s redeemed is the twelve apostles of the Lamb. In Jesus, God’s promise to bless all of the families of the earth through Abraham has been fully realized (Gen 12:3).”

“a wall: Rev 21:17-20; Ezr 9:9; Neh 12:27; Psa 51:18, Psa 122:7 twelve gates: Rev 21:21, Rev 21:25; Isa 54:12, Isa 60:18; Eze 48:31-34 twelve angels: Mat 18:10; Luk 15:10, Luk 16:22; Heb 1:14 and names: Rev 7:4-8; Num. 2:2-32; Act 26:7 Revelation 21:13”