Hebrews 7:21

and he with an oath through Him who is saying unto him, 'The Lord sware, and will not repent, Thou art a priest -- to the age, according to the order of Melchisedek;')

Psalm 110:4

Jehovah hath sworn, and doth not repent, 'Thou art a priest to the age, According to the order of Melchizedek.'

Hebrews 7:17

for He doth testify -- 'Thou art a priest -- to the age, according to the order of Melchisedek;'

1 Samuel 15:29

and also, the Pre-eminence of Israel doth not lie nor repent, for He is not a man to be penitent.'

Hebrews 6:16-18

for men indeed do swear by the greater, and an end of all controversy to them for confirmation is the oath,

Treasury of Scripture Knowledge

Summary

(For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)

Sware

General references

Bible References

The lord

Hebrews 7:17
for He doth testify -- 'Thou art a priest -- to the age, according to the order of Melchisedek;'
Psalm 110:4
Jehovah hath sworn, and doth not repent, 'Thou art a priest to the age, According to the order of Melchizedek.'

Sware

Hebrews 6:16
for men indeed do swear by the greater, and an end of all controversy to them for confirmation is the oath,

General references

Hebrews 7:17
for He doth testify -- 'Thou art a priest -- to the age, according to the order of Melchisedek;'