Deuteronomy 14:28-29 "At the end of every third year you shall bring out the tithe of your produce of that year and store it up within your gates. And the Levite, because he has no portion nor inheritance with you, and the stranger and the fatherless and the widow who are within your gates, may come and eat and be satisfied, that the LORD your God may bless you in all the work of your hand which you do.
Deuteronomy 26:12-15 “When you have finished laying aside all the tithe of your increase in the third year—the year of tithing—and have given it to the Levite, the stranger, the fatherless, and the widow, so that they may eat within your gates and be filled, then you shall say before the LORD your God: ‘I have removed the holy tithe from my house, and also have given them to the Levite, the stranger, the fatherless, and the widow, according to all Your commandments which You have commanded me; I have not transgressed Your commandments, nor have I forgotten them. I have not eaten any of it when in mourning, nor have I removed any of it for an unclean use, nor given any of it for the dead. I have obeyed the voice of the LORD my God, and have done according to all that You have commanded me. Look down from Your holy habitation, from heaven, and bless Your people Israel and the land which You have given us, just as You swore to our fathers, “a land flowing with milk and honey.”’
Malachi 3:10 Bring all the tithes into the storehouse, That there may be food in My house, And try Me now in this," Says the LORD of hosts, "If I will not open for you the windows of heaven And pour out for you such blessing That there will not be room enough to receive it.
Genesis 14:19-20 And he blessed him and said: "Blessed be Abram of God Most High, Possessor of heaven and earth; And blessed be God Most High, Who has delivered your enemies into your hand." And he gave him a tithe of all.