Ezekiel 37:18-19

18“When the children of your people speak to you saying, ‘Won’t you tell us what you mean by these?’

19say to them, thus says Adonai Elohim: ‘Behold, I will take the stick of Joseph—which is in the hand of Ephraim and the tribes of Israel joined with him—and I will put them together with the stick of Judah, and make them one stick. They will be one in My hand.’