Hebrews 7:23

Also, while they became priests in large numbers, since death prevents them from continuing to serve,

Hebrews 7:8

Again, it is mortal men in the one case who receive tithes, while in the other it is one of whom the witness is that 'he lives.'

Treasury of Scripture Knowledge

Summary

And they truly were many priests, because they were not suffered to continue by reason of death:

Bible References

Were

Hebrews 7:8
Again, it is mortal men in the one case who receive tithes, while in the other it is one of whom the witness is that 'he lives.'