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.
Hebrews 7:6
7:6 But Melchizedek who does not share their ancestry collected a tithe from Abraham and blessed the one who possessed the promise.
Hebrews 11:17
11:17 By faith Abraham, when he was tested, offered up Isaac. He had received the promises, yet he was ready to offer up his only son.