Hebrews 7:24

but he, because he continues {forever}, holds the priesthood permanently.

Hebrews 7:28

For the law appoints men [as] high priests who have weakness, but the statement of the oath, after the law, [appoints] a Son, who is made perfect {forever}.

John 12:34

Then the crowd replied to him, "We have heard from the law that the Christ remains {forever}! And how do you say that the Son of Man must be lifted up? Who is this Son of Man?"

1 Samuel 2:35

But I will raise up for myself a reliable priest; he will do just according to what [is] in my heart and in my soul. I will build for him a lasting house and he will walk continually before my anointed one {forever}.

Isaiah 9:6-7

For a child has been born for us; a son has been given to us. And the dominion will be on his shoulder, and his name is called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.

Romans 6:9

knowing that Christ, [because he] has been raised from the dead, is going to die no more, death no longer being master over him.

Hebrews 7:8-25

And in this case mortal men receive tithes, but in that case it is testified that he lives.

Hebrews 13:8

Jesus Christ [is] the same yesterday and today and {forever}.

Revelation 1:18

and the one who lives, and I was dead, and behold, I am living {forever and ever}, and I hold the keys of death and of Hades.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

He continueth

Hebrews 7:8
And in this case mortal men receive tithes, but in that case it is testified that he lives.
Hebrews 13:8
Jesus Christ [is] the same yesterday and today and {forever}.
Isaiah 9:6
For a child has been born for us; a son has been given to us. And the dominion will be on his shoulder, and his name is called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.
John 12:34
Then the crowd replied to him, "We have heard from the law that the Christ remains {forever}! And how do you say that the Son of Man must be lifted up? Who is this Son of Man?"
Romans 6:9
knowing that Christ, [because he] has been raised from the dead, is going to die no more, death no longer being master over him.
Revelation 1:18
and the one who lives, and I was dead, and behold, I am living {forever and ever}, and I hold the keys of death and of Hades.

Hath

1 Samuel 2:35
But I will raise up for myself a reliable priest; he will do just according to what [is] in my heart and in my soul. I will build for him a lasting house and he will walk continually before my anointed one {forever}.

General references

Numbers 20:26
Strip off Aaron's garments, and put them on Eleazar his son; Aaron will be gathered [to his people], and he will die there."
Zechariah 1:5
"Your ancestors, where are they? And the prophets, do they live forever?