Deuteronomy 26:12-13

12When you have finished paying all athe tithe of your produce in the third year, which is bthe 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, cnor have I forgotten them.
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