Hebrews 5:10 WEB

⁸  though he was a Son, yet learned obedience by the things which he suffered.

⁹  Having been made perfect, he became to all of those who obey him the author of eternal salvation,

¹⁰  named by God a high priest after the order of Melchizedek.

¹¹  About him we have many words to say, and hard to interpret, seeing you have become dull of hearing.

¹²  For when by reason of the time you ought to be teachers, you again need to have someone teach you the rudiments of the first principles of the oracles of God. You have come to need milk, and not solid food.