Hebrews 7:24

but He, because He abideth for ever, hath a priesthood that passeth not to any other:

Hebrews 7:28

For the law appointeth men high-priests, who have infirmity; but the oath, recorded since the law, appointeth the Son to be priest for ever, being fully perfected for it.

John 12:34

The people answered Him, We have heard out of the law, that the Messiah abideth for ever: and how sayest thou, the Son of man must be lifted up? who is this Son of man?

Romans 6:9

knowing that Christ being raised from the dead dieth no more; death hath no more power over Him: for as He died, He died once for all on account of sin;

Hebrews 7:8-25

besides, here men that die receive tithes; but there he of whom it is testified that he liveth.

Hebrews 13:8

Jesus Christ is the same yesterday, to day, and for ever:

Revelation 1:18

I am the first and the last, who live, though I was dead; and behold, I am alive for ever and ever, Amen, and have the keys of hades and of death.

Treasury of Scripture Knowledge

Summary

But this man, because he continueth ever, hath an unchangeable priesthood.

Bible References

He continueth

Hebrews 7:8
besides, here men that die receive tithes; but there he of whom it is testified that he liveth.
Hebrews 13:8
Jesus Christ is the same yesterday, to day, and for ever:
John 12:34
The people answered Him, We have heard out of the law, that the Messiah abideth for ever: and how sayest thou, the Son of man must be lifted up? who is this Son of man?
Romans 6:9
knowing that Christ being raised from the dead dieth no more; death hath no more power over Him: for as He died, He died once for all on account of sin;
Revelation 1:18
I am the first and the last, who live, though I was dead; and behold, I am alive for ever and ever, Amen, and have the keys of hades and of death.