Hebrews 5:9-11

New Revised Standard Version Catholic Edition

⁹ and having been made perfect, he became the source of eternal salvation for all who obey him, ¹⁰ having been designated by God a high priest according to the order of Melchizedek.

Warning against Falling Away

¹¹ About this^[a] we have much to say that is hard to explain, since you have become dull in understanding.