Gen. 14:18-20

18 Then Melchizedek king of Salem brought out bread and wine; he was the priest of God Most High.
19 And he blessed him and said:“Blessed be Abram of God Most High,Possessor of heaven and earth;
20 And blessed be God Most High,Who has delivered your enemies into your hand.”And he gave him a tithe of all.

Gen. 28:20-22

20 And Jacob vowed a vow, saying, If God will be with me, and will keep me in this way that I go, and will give me bread to eat, and raiment to put on,
21 So that I come again to my father’s house in peace; then shall the Lord be my God:
22 And this stone, which I have set for a pillar, shall be God’s house: and of all that thou shalt give me I will surely give the tenth unto thee.

Heb. 6:20

20 Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec.

Heb. 7:1-10

For this Melchisedec, king of Salem, priest of the most high God, who met Abraham returning from the slaughter of the kings, and blessed him;
To whom also Abraham gave a tenth part of all; first being by interpretation King of righteousness, and after that also King of Salem, which is, King of peace;
Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.
Now consider how great this man was, unto whom even the patriarch Abraham gave the tenth of the spoils.
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:
But he whose descent is not counted from them received tithes of Abraham, and blessed him that had the promises.
And without all contradiction the less is blessed of the better.
And here men that die receive tithes; but there he receiveth them, of whom it is witnessed that he liveth.
And as I may so say, Levi also, who receiveth tithes, payed tithes in Abraham.
10 For he was yet in the loins of his father, when Melchisedec met him.

Lev. 27:30-32

30 And all the tithe of the land, whether of the seed of the land, or of the fruit of the tree, is the Lord’s: it is holy unto the Lord.
31 And if a man will at all redeem ought of his tithes, he shall add thereto the fifth part thereof.
32 And concerning the tithe of the herd, or of the flock, even of whatsoever passeth under the rod, the tenth shall be holy unto the Lord.

Prov.3:9-10

Honour the Lord with thy substance, and with the firstfruits of all thine increase:
10 So shall thy barns be filled with plenty, and thy presses shall burst out with new wine.

Mal. 3:6-18

For I am the Lord, I change not; therefore ye sons of Jacob are not consumed.
Even from the days of your fathers ye are gone away from mine ordinances, and have not kept them. Return unto me, and I will return unto you, saith the Lord of hosts. But ye said, Wherein shall we return?
Will a man rob God? Yet ye have robbed me. But ye say, Wherein have we robbed thee? In tithes and offerings.
Ye are cursed with a curse: for ye have robbed me, even this whole nation.
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.
11 And I will rebuke the devourer for your sakes, and he shall not destroy the fruits of your ground; neither shall your vine cast her fruit before the time in the field, saith the Lord of hosts.
12 And all nations shall call you blessed: for ye shall be a delightsome land, saith the Lord of hosts.
13 Your words have been stout against me, saith the Lord. Yet ye say, What have we spoken so much against thee?
14 Ye have said, It is vain to serve God: and what profit is it that we have kept his ordinance, and that we have walked mournfully before the Lord of hosts?
15 And now we call the proud happy; yea, they that work wickedness are set up; yea, they that tempt God are even delivered.
16 Then they that feared the Lord spake often one to another: and the Lord hearkened, and heard it, and a book of remembrance was written before him for them that feared the Lord, and that thought upon his name.
17 And they shall be mine, saith the Lord of hosts, in that day when I make up my jewels; and I will spare them, as a man spareth his own son that serveth him.
18 Then shall ye return, and discern between the righteous and the wicked, between him that serveth God and him that serveth him not.

Matt. 23:23

23 Woe unto you, scribes and Pharisees, hypocrites! for ye pay tithe of mint and anise and cummin, and have omitted the weightier matters of the law, judgment, mercy, and faith: these ought ye to have done, and not to leave the other undone.

1 Cor.16:1-2

Now concerning the collection for the saints, as I have given order to the churches of Galatia, even so do ye.
Upon the first day of the week let every one of you lay by him in store, as God hath prospered him, that there be no gatherings when I come.