Genesis 14:18

14:18 Melchizedek king of Salem brought out bread and wine. (Now he was the priest of the Most High God.)

Hebrews 7:1-2

The Nature of Melchizedek’s Priesthood

7:1 Now this Melchizedek, king of Salem, priest of the most high God, met Abraham as he was returning from defeating the kings and blessed him. 7:2 To him also Abraham apportioned a tithe of everything. His name first means king of righteousness, then king of Salem, that is, king of peace.