'Wall' in the Bible

My love is like a gazelleor a young stag.Look, he is standing behind our wall,gazing through the windows,peering through the lattice.

If she is a wall,we will build a silver parapet on it.If she is a door,we will enclose it with cedar planks.

W I am a walland my breasts like towers.So in his eyes I have becomelike one who finds peace.