Hebrews 6:20

6:20 where Jesus our forerunner entered on our behalf, since he became a priest forever in the order of Melchizedek. ¹ 

Hebrews 13:12

13:12 Therefore, to sanctify the people by his own blood, Jesus also suffered outside the camp.

[6:20]  ¹ sn A quotation from Ps 110:4, picked up again from Heb 5:6, 10.