He that by usury and unjust gain increaseth his substance. "Usury" (neshek) is interest on money lent taken in money; "unjust gain" (tarbith) is interest taken in kind, as if a man, having lent a bushel of corn, exacted two bushels in return.
All such transactions were forbidden by the Law of Moses, at any rate between Israelites (see Le 25:36, 37, "Thou shalt not give thy brother thy money upon usury (neshek), nor lend him thy victuals for increase [marbith, equivalent to tarbith, which is used in verse 36] ").
Septuagint, ΄ετὰ τόκων καὶ πλεονασμῶν, "With interest and usury." (For censure of usury, see Psalms 109:11; Ezekiel 18:13; and, contrast Psalms 15:5; Ezekiel 18:8.) He shall gather it for him that will pity the poor.
He shall never enjoy it himself, and shall fall into the hands of one who will hake a better use of it (see on Proverbs 22:16; and comp Proverbs 13:22; Job 27:16, etc.). In our Lord's parable the pound is taken from one who made no good use of it and is given to a more profitable servant (Luke 19:24).