Deuteronomy 26:1-4

When you have entered the land the LORD your God is giving you as an inheritance and have taken possession of it and settled in it, take some of the firstfruits of all that you produce from the soil of the land 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 and say to the priest in office at the time, “I declare today to the LORD your God that I have come to the land the LORD swore to our ancestors to give us.” The priest shall take the basket from your hands and set it down in front of the altar of the LORD your God.