Thus says Yahweh: "For three transgressions of Moab, yes, for four, I will not turn away its punishment; Because he burned the bones of the king of Edom into lime;
Morgan classified the judgments here as being against (1) injustice; (2) avarice; (3) oppression; (4) immorality; (5) profanity; (6) blasphemy; and (7) sacrilege.[1]  These violations are specifically related to the portion of the Mosaic law which is applicable in each case.  Amos' prophecy should be accepted as sufficient proof of the prior existence of written records of God's law; and the fact that the manifest reference to the Pentateuch, as repeatedly made, along with the evident assumption that the things referred to were well known and universally understood by God's people, encourages the conclusion that, "The written sources in question go back to a much earlier period."[2]