Hebrews 3:11

3:11 “As I swore in my anger, ‘They will never enter my rest!’”

Hebrews 7:21

7:21 but Jesus did so with a sworn affirmation by the one who said to him, “The Lord has sworn and will not change his mind, ‘You are a priest forever’” –

Psalms 110:4

110:4 The Lord makes this promise on oath and will not revoke it:

“You are an eternal priest after the pattern of Melchizedek.”

Matthew 24:35

24:35 Heaven and earth will pass away, but my words will never pass away.