'Gateway' in the Bible

"Son of man, because Tyre has said about Jerusalem, 'Aha, the gateway of the peoples is broken; it has swung open to me. I will become rich, now that she has been destroyed,'

When he brought me there, I saw a man whose appearance was like bronze, with a linen cord and a measuring stick in his hand. He was standing in the gateway.

He measured the width of the entrance of the gateway as 17? feet, and the length of the gateway as 22? feet.

He measured the gateway from the roof of one alcove to the roof of the other, a width of 43? feet from one entrance to the opposite one.

He measured the porch at 105 feet high; the gateway went all around to the jamb of the courtyard.