Numbers 31:47
of the half, therefore of the sons of Israel, Moses took one portion of fifty, both of man and of beast, and gave them unto the Levites, who kept the charge of the tabernacle of the LORD, as the LORD had commanded Moses.
Numbers 31:30
And of the half belonging to the sons of Israel, thou shalt take one portion of fifty, of the persons, of the oxen, of the asses, and of the flocks, of all manner of animals and give them unto the Levites, who keep the charge of the tabernacle of the LORD.
Numbers 18:21-24
And, behold, I have given the sons of Levi all the tithes in Israel for an inheritance, for their ministry because they serve in the ministry of the tabernacle of the testimony.
Deuteronomy 12:17-19
Thou may not eat within thy gates the tithe of thy grain or of thy wine or of thy oil or the firstborn of thy cows or of thy sheep nor any of thy vows which thou hast promised nor thy freewill offerings or the heave offerings of thy hands.
Psalm 134:1
Behold, bless ye the LORD, all ye slaves of the LORD, who by night stand in the house of the LORD.
Isaiah 56:10-11
His watchmen are blind: they are all ignorant; they are all dumb dogs; they cannot bark; sleeping, lying down, they love to slumber.
Luke 10:1-8
After these things the Lord appointed another seventy also and sent them two by two before his face into every city and place where he himself would come.
1 Thessalonians 5:12-13
And we beseech you, brethren, to recognize those who labour among you and preside over you in the Lord and admonish you