Hebrews 7:21
but he with an oath by the one who said to him, "The Lord has sworn and will not change his mind, 'You [are] a priest {forever}'"),
Psalm 110:4
Yahweh has sworn and he will not change [his mind], "You [are] a priest forever according to the manner of Melchizedek."
Hebrews 7:17
For it is testified, "You [are] a priest {forever} according to the order of Melchizedek."
1 Samuel 15:29
Moreover, the Glory of Israel will not break faith and will not regret, for he [is] not a human that he should regret."
Hebrews 6:16-18
For people swear by what is greater [than themselves], and the oath for confirmation [is the] end of all dispute for them.