Hebrews 5:9-11 The Passion Translation (TPT)
9 And after being proven perfect in this way he has now become the source of eternal salvation to all those who listen to him and obey. 10 For God has designated him as the King-Priest who is over the priestly order of Melchizedek.[a]
Moving On into Full Maturity
11 We have much to say about this topic although it is difficult to explain,[b] because you have become too dull and sluggish to understand.
Hebrews 5:9-11 New International Version (NIV)
9 and, once made perfect, he became the source of eternal salvation for all who obey him 10 and was designated by God to be high priest in the order of Melchizedek.
Warning Against Falling Away
11 We have much to say about this, but it is hard to make it clear to you because you no longer try to understand.