Protection and provision for the poor are constantly reflected in the laws of God:
When thou dost lend thy brother any thing, thou shalt not go into his house to fetch his pledge. Thou shalt stand abroad, and the man to whom thou dost lend shall bring out the pledge abroad unto thee. And if the man be poor, thou shalt not sleep with his pledge: In any case thou shalt deliver him the pledge again when the sun goeth down, that he may sleep in his own raiment, and bless thee: and it shall be righteousness unto thee before the LORD thy God. (Deuteronomy 24:10-13)
The Dake Annotated Reference Bible offers the following comment on this text, on page 237 of the Old Testament:
The outer garment of a poor man was usually the best he had to offer as a pledge. Therefore, this law was for his benefit--so he wouldn't suffer the cold at night. The garment was shapeless, like a sack with head and arm openings (Ex. 12:34). It was usually of wool and hair of varying degrees of fineness, some entirely black and others white, often marked with two broad stripes. It was used as a wrap by day and a covering at night. Thus, it was so important, especially at night, that both here and in v. 17 and Ex. 22:26 it is forbidden to be kept from the owner's use as a pledge (cp. Job. 24:7-8). The outer garment is called a cloak (Mt. 5:40); garment (Mt. 14:36); raiment (Mt. 27:31); and vesture (Rev. 19:13). Most places in the N.T. where garment is mentioned refer to this outer garb (Mt. 21:7-8; 24:18; Jn. 13:4, 12; Acts 7:38; 22:20-23).