Exodus 29:9 New International Version (NIV)

⁹ and fasten caps on them. Then tie sashes on Aaron and his sons.^[a] The priesthood is theirs by a lasting ordinance.

“Then you shall ordain Aaron and his sons.

1 Kings 13:33 New International Version (NIV)

³³ Even after this, Jeroboam did not change his evil ways, but once more appointed priests for the high places from all sorts of people. Anyone who wanted to become a priest he consecrated for the high places.

2 Kings 17:32 New International Version (NIV)

³² They worshiped the Lord, but they also appointed all sorts of their own people to officiate for them as priests in the shrines at the high places.

2 Chronicles 11:14-15 New International Version (NIV)

¹⁴ The Levites even abandoned their pasturelands and property and came to Judah and Jerusalem, because Jeroboam and his sons had rejected them as priests of the Lord ¹⁵ when he appointed his own priests for the high places and for the goat and calf idols he had made.

2 Chronicles 13:9 New International Version (NIV)

⁹ But didn’t you drive out the priests of the Lord, the sons of Aaron, and the Levites, and make priests of your own as the peoples of other lands do? Whoever comes to consecrate himself with a young bull and seven rams may become a priest of what are not gods.