Hebrews 7:17

For it is testified, Thou art a priest forever after the order of Melchizedek.

Hebrews 5:6

as also he says in another place, Thou art a priest forever after the order of Melchizedek.

Hebrews 7:21

but He with an oath through the one saying to him, The Lord hath sworn, and will not regret it; thou art a priest forever;

Hebrews 6:20

whither Jesus the forerunner has entered in our behalf, having been made a high priest forever after the order of Melchizedek.

Hebrews 5:10

having been ordained of God a high priest after the order of Melchizedek.

Hebrews 7:15

And it is still more abundantly evident, if after the similitude of Melchizedek another priest rises,

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 abundantly evident, if after the similitude of Melchizedek another priest rises,
Hebrews 5:6
as also he says in another place, Thou art a priest forever after the order of Melchizedek.
Hebrews 6:20
whither Jesus the forerunner has entered in our behalf, having been made a high priest forever after the order of Melchizedek.