Deuteronomy 26:13-14

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.