2 Chronicles 29:11
My sons, do not be negligent now; for the LORD has chosen you to stand before him, to minister to him, and that you should be his ministers, and burn incense."
Numbers 3:6-9
"Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister to him.
Numbers 8:6-14
"Take the Levites from among the children of Israel, and cleanse them.
Numbers 16:35-40
Fire came forth from the LORD, and devoured the two hundred fifty men who offered the incense.
Numbers 18:2-7
Your brothers also, the tribe of Levi, the tribe of your father, bring near with you, that they may be joined to you, and minister to you: but you and your sons with you shall be before the tent of the testimony.
Deuteronomy 10:8
At that time the LORD set apart the tribe of Levi, to bear the ark of the covenant of the LORD, to stand before the LORD to minister to him, and to bless in his name, to this day.
Galatians 6:7-8
Do not be deceived. God is not mocked, for whatever a man sows, that he will also reap.