Laws of Human Relations

15 "You shall not give up to his master a slave who has escaped from his master to you; 16 he shall dwell with you, in your midst, in the place which he shall choose within one of your towns, where it pleases him best; you shall not oppress him. 17 "There shall be no cult prostitute of the daughters of Israel, neither shall there be a cult prostitute of the sons of Israel. 18 You shall not bring the hire of a harlot, or the wages of a dog, into the house of the Lord your God in payment for any vow; for both of these are an abomination to the Lord your God. 19 "You shall not lend upon interest to your brother, interest on money, interest on victuals, interest on anything that is lent for interest 20 To a foreigner you may lend upon interest, but to your brother you shall not lend upon interest; that the Lord your God may bless you in all that you undertake in the land which you are entering to take possession of it. 21 "When you make a vow to the Lord your God, you shall not be slack to pay it; for the Lord your God will surely require it of you, and it would be sin in you 22 But if you refrain from vowing, it shall be no sin in you. 23 You shall be careful to perform what has passed your lips, for you have voluntarily vowed to the Lord your God what you have promised with your mouth. 24 "When you go into your neighbor's vineyard, you may eat your fill of grapes, as many as you wish, but you shall not put any in your vessel. 25 When you go into your neighbor's standing grain, you may pluck the ears with your hand, but you shall not put a sickle to your neighbor's standing grain.

Matthew Henry's Commentary on Deuteronomy 23:15-25

Commentary on Deuteronomy 23:15-25

(Read Deuteronomy 23:15-25)

It is honourable to shelter and protect the weak, provided they are not wicked. Proselytes and converts to the truth, should be treated with particular tenderness, that they may have no temptation to return to the world. We cannot honour God with our substance, unless it be honestly and honourably come by. It must not only be considered what we give, but how we got it. Where the borrower gets, or hopes to get, it is just that the lender should share the gain; but to him that borrows for necessary food, pity must be showed. That which is gone out of thy lips, as a solemn and deliberate vow, must not be recalled, but thou shalt keep and perform it punctually and fully. They were allowed to pluck and eat of the corn or grapes that grew by the road side; only they must not carry any away. This law intimated what great plenty of corn and wine they should have in Canaan. It provided for the support of poor travellers, and teaches us to be kind to such, teaches us to be ready to distribute, and not to think every thing lost that is given away. Yet it forbids us to abuse the kindness of friends, or to take advantage of what is allowed. Faithfulness to their engagements should mark the people of God; and they should never encroach upon others.