The bible has a lot of scriptures about tithing, and he has commanded us in the scriptures to honor his words, you will see below references and bible passages in the old and new testament.
Gen 14:20 And blessed be the most high God, which hath delivered thine enemies into thy hand. And he gave him tithes of all.
Lev 27:31 And if a man will at all redeem [ought] of his tithes, he shall add thereto the fifth [part] thereof.
Num 18:24 But the tithes of the children of Israel, which they offer [as] an heave offering unto the LORD, I have given to the Levites to inherit: therefore I have said unto them, Among the children of Israel they shall have no inheritance.
Num 18:26 Thus speak unto the Levites, and say unto them, When ye take of the children of Israel the tithes which I have given you from them for your inheritance, then ye shall offer up an heave offering of it for the LORD, [even] a tenth [part] of the tithe.
Num 18:28 Thus ye also shall offer an heave offering unto the LORD of all your tithes, which ye receive of the children of Israel; and ye shall give thereof the LORD’S heave offering to Aaron the priest.
Deu 12:6 And thither ye shall bring your burnt offerings, and your sacrifices, and your tithes, and heave offerings of your hand, and your vows, and your freewill offerings, and the firstlings of your herds and of your flocks:
Deu 12:11 Then there shall be a place which the LORD your God shall choose to cause his name to dwell there; thither shall ye bring all that I command you; your burnt offerings, and your sacrifices, your tithes, and the heave offering of your hand, and all your choice vows which ye vow unto the LORD:
Deu 26:12 When thou hast made an end of tithing all the tithes of thine increase the third year, [which is] the year of tithing, and hast given [it] unto the Levite, the stranger, the fatherless, and the widow, that they may eat within thy gates, and be filled;
2Ch 31:12 And brought in the offerings and the tithes and the dedicated [things] faithfully: over which Cononiah the Levite [was] ruler, and Shimei his brother [was] the next.
Neh 10:37 And [that] we should bring the firstfruits of our dough, and our offerings, and the fruit of all manner of trees, of wine and of oil, unto the priests, to the chambers of the house of our God; and the tithes of our ground unto the Levites, that the same Levites might have the tithes in all the cities of our tillage.
Neh 10:38 And the priest the son of Aaron shall be with the Levites, when the Levites take tithes: and the Levites shall bring up the tithe of the tithes unto the house of our God, to the chambers, into the treasure house.
Neh 12:44 And at that time were some appointed over the chambers for the treasures, for the offerings, for the firstfruits, and for the tithes, to gather into them out of the fields of the cities the portions of the law for the priests and Levites: for Judah rejoiced for the priests and for the Levites that waited.
Neh 13:5 And he had prepared for him a great chamber, where aforetime they laid the meat offerings, the frankincense, and the vessels, and the tithes of the corn, the new wine, and the oil, which was commanded [to be given] to the Levites, and the singers, and the porters; and the offerings of the priests.
Amo 4:4 Come to Bethel, and transgress; at Gilgal multiply transgression; and bring your sacrifices every morning, [and] your tithes after three years:
Mal 3:8 Will a man rob God? Yet ye have robbed me. But ye say, Wherein have we robbed thee? In tithes and offerings.
Mal 3:10 Bring ye all the tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the LORD of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that [there shall] not [be room] enough [to receive it].
Luk 18:12 I fast twice in the week, I give tithes of all that I possess.
Heb 7:5 And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
Heb 7:6 But he whose descent is not counted from them received tithes of Abraham, and blessed him that had the promises.
Heb 7:8 And here men that die receive tithes; but there he [receiveth them], of whom it is witnessed that he liveth.
Heb 7:9 And as I may so say, Levi also, who receiveth tithes, payed tithes in Abraham.
The word of God is complete