The people anciently might have reasoned that they had the moral law of God as written by his own finger on tables of stone; that they had statutes, judgments, and instructions which had been spoken to Moses from the mouth of God, and which had been carefully written out; and what more was needed? But notwithstanding all those excellent truths which they had in their possession, God was pleased to speak to them “at sundry times and in divers manners by his holy prophets.” GSAM 467.2
We find that the testimonies borne by the various prophets, as Isaiah, Jeremiah, Ezekiel, Daniel, Hosea, and others, in each case taught the same great principle respecting obedience to God; yet each prophet had his peculiar reproofs for the people of his time, for their tendency toward being drawn from the sacred and holy principle of right by the prevailing customs of the age in which the prophecy was given. GSAM 467.3