'Trees' in the Bible

Hiram king of Tyre sent messengers to David, and cedar trees, and carpenters, and masons; and they built David a house.

When David inquired of Yahweh, he said, "You shall not go up. Circle around behind them, and attack them over against the mulberry trees.

It shall be, when you hear the sound of marching in the tops of the mulberry trees, that then you shall stir yourself up; for then Yahweh has gone out before you to strike the army of the Philistines."