'Wall' in the Bible

My beloved is like a roe or a young hart. Behold, he stands behind our wall! He looks in at the windows. He glances through the lattice.

If she is a wall, we will build on her a turret of silver. if she is a door, we will enclose her with boards of cedar. Beloved

I am a wall, and my breasts like towers, then I was in his eyes like one who found peace.