2 Chronicles 29:11
Now therefore, my sons, be not negligent: for the LORD had chosen you to stand before him, and for to minister and burn offerings to him."
Numbers 3:6-9
"Bring the tribe of Levi, and set them before Aaron the priest, and let them serve him and wait upon him -
Numbers 8:6-14
"Take the Levites from among the children of Israel, and cleanse them.
Numbers 16:35-40
And there came out a fire from the LORD and consumed the two hundred and fifty men that offered cense.
Numbers 18:2-7
And thy brethren also, the tribe of Levi, the tribe of thy father take with thee, and let them be joined unto thee and minister unto thee. And thou and thy sons with thee shall minister before the tabernacle of witness.
Deuteronomy 10:8
And the same season the LORD separated the tribe of Levi to bear the ark of the covenant of the LORD and to stand before the LORD, and to minister unto him and to bless in his name unto this day.
Galatians 6:7-8
Be not deceived, God is not mocked. For whatsoever a man soweth, that shall he reap.