Ki Tetsei (Deuteronomy) 23:8 – 24
8You shall not reject an Edomite, for he is your brother; you shall not reject an Mitzrayim, for you were a sojourner in his land. 9Children who are born to them in the third generation may enter the congregation of HaShem.
10When a camp goes out against your enemies, you shall guard against anything evil. 11If there will be among you a man who will not be clean because of a nocturnal occurrence, he shall go outside the camp; he shall not enter the midst of the camp. 12When it will be toward evening, he shall immerse himself in water, and when the sun sets, he may enter the midst of the camp. 13You shall have a place outside the camp, and to it you shall go out. 14You shall have a shovel in addition to your weapons, and it will be that when you sit outside, you shall dig with it; you shall go back and cover your excrement. 15For HaShem, your G-d, walks in the midst of your camp to rescue you and to deliver your enemies before you; so your camp shall be holy, so that He will not see a shameful thing among you and turn away from behind you.
16You shall not turn over to his master a slave who is rescued from his master to you. 17He shall dwell with you in your midst, in whatever place he will choose in one of your cities, which is beneficial to him; you shall not taunt him.
18There shall not be a promiscuous woman among the daughters of Yisra’el, and there shall not be a promiscuous man among the sons of Yisra’el. 19You shall not bring a harlot’s hire or the exchange for a dog to the House of HaShem, your G-d, for any vow, for both of them are an abomination of HaShem, your G-d.
20You shall not cause your brother to take interest, interest of money or interest of food, interest of anything that may take as interest. 21You may cause a gentile to take interest, but you may not cause your brother to take interest, so that HaShem, your G-d, will bless you in your every undertaking on the Land to which you are coming to possess it.
22When you make a vow to HaShem, your G-d, you shall not be late in paying it, for HaShem, your G-d, will demand it of you, and there will be a sin in you. 23If you refrain from vowing, there will be no sin in you. 24You shall observe and carry out what emerges from your lips, just as you vowed a voluntary gift to HaShem, your G-d, whatever you spoke with your mouth.