Hebrews 5:10-12

10and was designated by God to be high priest in the order of Melchizedek.

Warning Against Falling Away 11We have much to say about this, but it is hard to make it clear to you because you no longer try to understand. 12In fact, though by this time you ought to be teachers, you need someone to teach you the elementary truths of God’s word all over again. You need milk, not solid food!