Hebrews 7:3
Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.
Hebrews 10:1
For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.
Hebrews 13:15
By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name.