Deuteronomy 32:4

Iniquity - Sin; wickedness; evil.

Without - Outside.

He is the Rock - The word צור tsur is rendered Creator by some eminent critics; and khalyk is the reading in the Arabic Version. Rab. Moses ben Maimon, in his valuable work, Moreh Nebochim, observes that the word צור tsur, which is ordinarily translated rock, signifies origin, fountain, first cause, etc., and in this way it should be translated here: "He is the first principle, his work is perfect." As he is the cause of all things, he must be infinitely perfect; and consequently all his works must be perfect in their respective kinds. As is the cause, so must the effect be. Some think the word rock gives a very good sense: for, as in those lands, rocks were the ordinary places of defense and security, God may be metaphorically represented thus, to signify his protection of his followers. I prefer the opinion of Maimon.

He is the Rock, his work is perfect - Rather, the Rock, perfect is his work. This epithet, repeated no less than five times in the Song Deuteronomy 32:15, Deuteronomy 32:18, Deuteronomy 32:30-31, represents those attributes of God which Moses is seeking to enforce, immutability and impregnable strength. Compare the expression "the stone of Israel" in Genesis 49:24; and see 1 Samuel 2:2; Psalm 18:2; Matthew 16:18; John 1:42. Zur, the original of "Rock," enters frequently into the composition of proper names of the Mosaic time, e. g., Numbers 1:5-6, Numbers 1:10; Numbers 2:12; Numbers 3:35, etc. Our translators have elsewhere rendered it according to the sense "everlasting strength" Isaiah 26:4, "the Mighty One" Isaiah 30:29; in this chapter they have rightly adhered to the letter throughout.

32:4 A rock - As for the stability of his nature, and invincibleness of his power, so also for his fixedness and immutability in his counsels and promises and ways; so that is there shall be a sad change in your affairs, remember that this proceeds from yourselves and from the change of your ways towards God, and not from God, in whom there is no variableness or shadow of change, James 1:17 .His work - All his works and actions are unblameable, perfect, wise and righteous. His ways - All his administrations in the world and particularly with you are managed with wisdom and justice.A God of truth - Constant to his promises: you cannot accuse him of any unfaithfulness to this day.