Hebrews 7:17

for it is witnessed of him, Thou art a priest for ever After the order of Melchizedek.

Psalm 110:4

Jehovah hath sworn, and will not repent: Thou art a priest for ever After the order of Melchizedek.

Hebrews 5:6

as he saith also in another place, Thou art a priest for ever After the order of Melchizedek.

Hebrews 7:21

(for they indeed have been made priests without an oath; but he with an oath by him that saith of him, The Lord sware and will not repent himself, Thou art a priest for ever);

Hebrews 6:20

whither as a forerunner Jesus entered for us, having become a high priest for ever after the order of Melchizedek.

Hebrews 5:10

named of God a high priest after the order of Melchizedek.

Hebrews 7:15

And what we say is yet more abundantly evident, if after the likeness of Melchizedek there ariseth another priest,

Treasury of Scripture Knowledge

Summary

For he testifieth, Thou art a priest for ever after the order of Melchisedec.

Bible References

General references

Hebrews 7:15
And what we say is yet more abundantly evident, if after the likeness of Melchizedek there ariseth another priest,
Hebrews 5:6
as he saith also in another place, Thou art a priest for ever After the order of Melchizedek.
Hebrews 6:20
whither as a forerunner Jesus entered for us, having become a high priest for ever after the order of Melchizedek.
Psalm 110:4
Jehovah hath sworn, and will not repent: Thou art a priest for ever After the order of Melchizedek.

American Standard Version Public Domain