Deuteronomy 26:13-14

13You shall say before the Lord your God, ‘I have removed the sacred portion (the tithe) from my house and also have given it to the Levite, to the stranger, to the orphan, and to the widow, in accordance with all that You have commanded me. I have not transgressed or forgotten any of Your commandments.

14I have not eaten from the tithe while mourning, nor have I removed any of it when I was [ceremonially] unclean [making the tithe ceremonially unclean], nor offered any of it to the dead. I have listened to the voice of the Lord my God; I have done everything in accordance with all that You have commanded me.