(For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec)
Ver. 21. And will not repent] Will not change his mind upon pretence that second thoughts are better. Those that can play with oaths, and can slip them as easily as monkeys do their collars, have nothing of God in them.