Devarim (Deuteronomy): Ki Tavo > Ch 26
When you come to the Promised Land, you shall give the first of your harvest to G-d
And it will be, when you come into the land which the Lord, your G-d, gives you for an inheritance, and you possess it and settle in it, that you shall take of the first of all the fruit of the ground, which you will bring from your land, which the Lord, your G-d, is giving you. And you shall put [them] into a basket and go to the place which the Lord, your G-d, will choose to have His Name dwell there. And you shall come to the kohen who will be [serving] in those days, and say to him, "I declare this day to the Lord, your G-d, that I have come to the land which the Lord swore to our forefathers to give us." And the kohen will take the basket from your hand, laying it before the altar of the Lord, your G-d."
You shall recall the exodus from Egypt
And you shall call out and say before the Lord, your G-d, "An Aramean [sought to] destroy my forefather, and he went down to Egypt and sojourned there with a small number of people, and there, he became a great, mighty, and numerous nation. And the Egyptians treated us cruelly and afflicted us, and they imposed hard labor upon us. So we cried out to the Lord, G-d of our fathers, and the Lord heard our voice and saw our affliction, our toil, and our oppression.
And the Lord brought us out from Egypt with a strong hand and with an outstretched arm, with great awe, and with signs and wonders. And He brought us to this place, and He gave us this land, a land flowing with milk and honey.
And now, behold, I have brought the first of the fruit of the ground which you, O Lord, have given to me." Then, you shall lay it before the Lord, your G-d, and prostrate yourself before the Lord, your G-d. Then, you shall rejoice with all the good that the Lord, your G-d, has granted you and your household you, the Levite, and the stranger who is among you.
In the third year you shall give a tithe to the Levite, the stranger, the orphan, and the widow
When you have finished tithing all the tithes of your produce in the third year, the year of the tithe, you shall give [them] to the Levite, the stranger, the orphan, and the widow, so that they can eat to satiety in your cities. Then you shall say before the Lord, your G-d, "I have removed the holy [portion] from the house, and I have also given it to the Levite, the stranger, the orphan, and the widow, according to all Your commandment that You commanded me; I have not transgressed Your commandments, nor have I forgotten [them]. I did not eat any of it [second tithe] while in my mourning, nor did I consume any of it while unclean; neither did I use any of it for the dead. I obeyed the Lord, my G-d; I did according to all that You commanded me. Look down from Your holy dwelling, from the heavens, and bless Your people Israel, and the ground which You have given to us, as You swore to our forefathers a land flowing with milk and honey.
You have selected the Lord this day to be your G-d, and the Lord has selected you to be His treasured people
This day, the Lord, your G-d, is commanding you to fulfill these statutes and ordinances, and you will observe and fulfill them with all your heart and with all your soul. You have selected the Lord this day, to be your G-d, and to walk in His ways, and to observe His statutes, His commandments and His ordinances, and to obey Him. And the Lord has selected you this day to be His treasured people, as He spoke to you, and so that you shall observe all His commandments, and to make you supreme, above all the nations that He made, [so that you will have] praise, a [distinguished] name and glory; and so that you will be a holy people to the Lord, your G-d, as He spoke.