'Tree' in the Bible

My people get knowledge from their tree, and their rod gives them news; for a false spirit is the cause of their wandering, and they have been false to their God.

I found Israel like grapes in the wilderness; I saw your fathers as the firstripe in the fig tree at her first time: but they went to Baalpeor, and separated themselves unto that shame; and their abominations were according as they loved.

His branches shall spread, and his beauty shall be as the olive tree, and his smell as Lebanon.

Ephraim shall say, What have I to do any more with idols? I have heard him, and observed him: I am like a green fir tree. From me is thy fruit found.