'Gates' in the Bible

It had a great and high wall, with twelve gates, and at the gates twelve angels; and names were written on them, which are the names of the twelve tribes of the sons of Israel.

There were three gates on the east and three gates on the north and three gates on the south and three gates on the west.

The one who spoke with me had a gold measuring rod to measure the city, and its gates and its wall.

And the twelve gates were twelve pearls; each one of the gates was a single pearl. And the street of the city was pure gold, like transparent glass.

In the daytime (for there will be no night there) its gates will never be closed;

Blessed are those who wash their robes, so that they may have the right to the tree of life, and may enter by the gates into the city.