Hebrews 7:17

For the Scripture bears witness: "You are a priest forever, with the rank of Melchizedek."

Hebrews 5:6

as also in another passage He says: "You are a priest forever, belonging to the rank of Melchizedek."

Hebrews 7:21

for the Levitical priests were appointed without His taking an oath, but He with His oath, when He said to Him: "The Lord took oath and will not change, You are a priest forever" --

Hebrews 6:20

(6:19) where Jesus has blazed the way for us and became a High Priest with the rank of Melchizedek.

Hebrews 5:10

since He had received from God the title of a High Priest with the rank of Melchizedek.

Hebrews 7:15

And it is still more overwhelmingly clear, since a different priest in the likeness of Melchizedek is appointed,

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 it is still more overwhelmingly clear, since a different priest in the likeness of Melchizedek is appointed,
Hebrews 5:6
as also in another passage He says: "You are a priest forever, belonging to the rank of Melchizedek."
Hebrews 6:20
(6:19) where Jesus has blazed the way for us and became a High Priest with the rank of Melchizedek.