Psalm 110:4

Christian Standard Bible Anglicised

⁴The Lord has sworn an oath and will not take it back:
‘You are a priest for ever
according to the pattern of Melchizedek.’^(A)

Hebrews 5:6

Christian Standard Bible Anglicised

⁶also says in another place,

You are a priest for ever
according to the order of Melchizedek.^[a]^(A)

²⁰Jesus has entered there on our behalf as a forerunner,^(A) because he has become a high priest for ever according to the order of Melchizedek.^(B)

²¹but he became a priest with an oath made by the one who said to him:

The Lord has sworn
and will not change his mind,
‘You are a priest for ever.’^[a]^(A)