'Tithe' in the Bible
You are forbidden to eat within your [city] gates the tithe of your grain or new wine or oil, or the firstborn of your herd or flock, or any of your votive offerings, or your freewill offerings, or the contribution of your hand.
“Every year you shall certainly tithe [a tenth] of all the yield of your seed which is produced by your field.
You shall eat the tithe (tenth) of your grain, your new wine, your oil, and the firstborn of your herd and your flock before the Lord your God in the place where He chooses to establish His Name (Presence), so that you may learn to fear [and worship] the Lord your God [with awe-filled reverence and profound respect] always.
If the place where the Lord your God chooses to set His Name (Presence) is a great distance from you and you are not able to carry your tithe, because the Lord your God has blessed you [with such an abundance],
“At the end of every third year you shall bring out all the tithe of your produce for that year, and shall store it up within your [city] gates.
“When you have finished paying all the tithe of your produce the third year, [which is] the year of tithing, then you shall give it to the Levite, to the stranger, to the orphan, and to the widow, so that they may eat within the gates of your cities and be satisfied.
You shall say before the Lord your God, ‘I have removed the sacred portion (the tithe) from my house and also have given it to the Levite, to the stranger, to the orphan, and to the widow, in accordance with all that You have commanded me. I have not transgressed or forgotten any of Your commandments.
I have not eaten from the tithe while mourning, nor have I removed any of it when I was [ceremonially] unclean [making the tithe ceremonially unclean], nor offered any of it to the dead. I have listened to the voice of the Lord my God; I have done everything in accordance with all that You have commanded me.