Psalm 110:4

4 The Lord has made a strong promise.

He will not change it.

He has promised, ‘You will be a priest for ever,

in the same way that Melchizedek was my priest.’

110:4Melchizedek was both a king and a priest. See Genesis 14:18-20. Later, the Israelite priests had to be Levites, so they were not the right family to be kings. Jesus was not a Levite, but he was a priest like Melchizedek. See Hebrews 5:6; 6:20; 7:17. A Levite is a person who belonged to the tribe of Levi, one of the 12 tribes of Israel. God chose the Levites to do special work for him in his temple. They helped the priests in the temple.