Deuteronomy 26:12-14

12“When you have finished paying all the tithe of your produce in the third year, which is the year of tithing, giving it to the Levite, the sojourner, the fatherless, and the widow, so that they may eat within your towns and be filled, 13then you shall say before the LORD your God, ‘I have removed the sacred portion out of my house, and moreover, I have given it to the Levite, the sojourner, the fatherless, and the widow, according to all your commandment that you have commanded me. I have not transgressed any of your commandments, nor have I forgotten them. 14I have not eaten of the tithe while I was mourning, or removed any of it while I was unclean, or offered any of it to the dead. I have obeyed the voice of the LORD my God. I have done according to all that you have commanded me.