Deuteronomy 26:2-4

2you are to take some of the firstfruits of all your produce from the soil of the land that the LORD your God is giving you and put them in a basket. Then go to the place the LORD your God will choose as a dwelling for His Name, 3to the priest who is serving at that time, and say to him, “I declare today to the LORD your God that I have entered the land that the LORD swore to our fathers to give us.”

4Then the priest shall take the basket from your hands and place it before the altar of the LORD your God,