The children of the murderers he slew not - This seems to be noted as a rare instance of clemency (compare 2 Kings 9:26 note). It is strange at first sight, that, when the Law contained so very plain a prohibition (marginal references), the contrary practice should have established itself. But we must remember, first, that the custom was that of the East generally (see Daniel 6:24); and secondly, that it had the sanction of one who might be thought to have known thoroughly the mind of the legislator, namely, Joshua (see Joshua 7:24-25).
Related Commentaries of 2 Kings 14:6
2 Kings 14:6
6 But the children of the murderers he slew not: according unto that which is written in the book of the law of Moses, wherein the LORD commanded, saying, The fathers shall not be put to death for the children, nor the children be put to death for the fathers; but every man shall be put to death for his own sin.