Revelation 21:12

It had a great, high wall with twelve gates, and twelve angels at the gates, which had carved upon them the names of the twelve tribes of the children of Israel.

Revelation 21:25

Its gates will never be shut by day??or there will be no night there

Matthew 18:10

"Beware of feeling scornful of one single little child, for I tell you that in heaven their angels have continual access to my Father in heaven.

Luke 15:10

In just that way, I tell you, there is joy among the angels of God over one sinful person who repents!"

Luke 16:22

And it came about that the beggar died and was carried away by the angels to the companionship of Abraham, and the rich man too died and was buried.

Acts 26:7

the promise in the hope of seeing which fulfilled our twelve tribes serve God zealously night and day. It is about this hope, your Majesty, that I am accused by some Jews.

Hebrews 1:14

Are not the angels all spirits in service, whom he sends on his errands for the good of those who are destined to possess salvation?

Revelation 7:4-8

I heard that the number of those that were marked with the seal was 144,000. They were from every tribe of the children of Israel:

Revelation 21:17-21

He measured the wall and it was about 144 cubits (216 feet), as men measure, for that was the way the angel measured.

Treasury of Scripture Knowledge

Summary

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

Twelve gates

Bible References

Twelve gates

Revelation 21:21
The twelve gates were twelve pearls; each gate made of a single pearl. The principal street of the city was pure gold, as transparent as glass.

Twelve angels

Matthew 18:10
"Beware of feeling scornful of one single little child, for I tell you that in heaven their angels have continual access to my Father in heaven.
Luke 15:10
In just that way, I tell you, there is joy among the angels of God over one sinful person who repents!"
Luke 16:22
And it came about that the beggar died and was carried away by the angels to the companionship of Abraham, and the rich man too died and was buried.
Hebrews 1:14
Are not the angels all spirits in service, whom he sends on his errands for the good of those who are destined to possess salvation?

And names

Revelation 7:4
I heard that the number of those that were marked with the seal was 144,000. They were from every tribe of the children of Israel:
Acts 26:7
the promise in the hope of seeing which fulfilled our twelve tribes serve God zealously night and day. It is about this hope, your Majesty, that I am accused by some Jews.