Psalms 80:2

2Before 80:2 It is believed that these three tribes represented all twelve tribes of Israel, Benjamin being incorporated into Judah, Manasseh inhabiting the country beyond the Jordan, and Ephraim the remainder of the land. It was natural for the Israelites to think of the three in one group, for they had camped together on the west side of the tabernacle during the years in the wilderness, and they were also the only descendants of Jacob’s wife Rachel.Ephraim and Benjamin and Manasseh, stir up Your power

And come to save us!