'Tree' in the Bible

And there was great weeping in all the country when all the people went through; and the king himself was waiting in the Kidron valley and all the people went by him in the direction of the olive-tree on the edge of the waste land.

And Absalom came across some of David's men. And Absalom was seated on his mule, and the mule went under the thick branches of a great tree, and his head became fixed in the tree and he was lifted up between earth and heaven, and the beast under him went on.

And a certain man saw it and said to Joab, I saw Absalom hanging in a tree.

Then Joab said, I would have made it safe for you. And he took three spears in his hand, and put them through Absalom's heart, while he was still living, in the branches of the tree.