Hebrews 7:1, 2, 21

This Melchizedek was king of Salem and priest of God Most High. He met Abraham returning from the defeat of the kings and blessed him

and Abraham gave him a tenth of everything. First, the name Melchizedek means “king of righteousness”; then also, “king of Salem” means “king of peace.”

but he became a priest with an oath when God said to him: “The Lord has sworn and will not change his mind: ‘You are a priest forever.’ ”