Deuteronomy 23:8-23:24

You shall not abhor an Edomite, for he is your kinsman. You shall not abhor an Egyptian, for you were a stranger in his land. Children born to them may be admitted into the congregation of the Lord in the third generation. When you go out as a troop against your enemies, be on your guard against anything untoward. If anyone among you has been rendered unclean by a nocturnal emission, he must leave the camp, and he must not reenter the camp. Toward evening he shall bathe in water, and at sundown he may reenter the camp. Further, there shall be an area for you outside the camp, where you may relieve yourself. With your gear you shall have a spike, and when you have squatted you shall dig a hole with it and cover up your excrement. Since the Lord your God moves about in your camp to protect you and to deliver your enemies to you, let your camp be holy; let Him not find anything unseemly among you and turn away from you. You shall not turn over to his master a slave who seeks refuge with you from his master. He shall live with you in any place he may choose among the settlements in your midst, wherever he pleases; you must not ill-treat him. No Israelite woman shall be a cult prostitute, nor shall any Israelite man be a cult prostitute. You shall not bring the fee of a whore or the pay of a dog into the house of the Lord your God in fulfillment of any vow, for both are abhorrent to the Lord your God. You shall not deduct interest from loans to your countrymen, whether in money or food or anything else that can be deducted as interest; but you may deduct interest from loans to foreigners. Do not deduct interest from loans to your countrymen, so that the Lord your God may bless you in all your undertakings in the land that you are about to enter and possess. When you make a vow to the Lord your God, do not put off fulfilling it, for the Lord your God will require it of you, and you will have incurred guilt; whereas you incur no guilt if you refrain from vowing. You must fulfill what has crossed your lips and perform what you have voluntarily vowed to the Lord your God, having made the promise with your own mouth.