The charge of the Lord thy God, i.e. what God hath charged or commanded thee to do; the act being put for the object; as is usual.
In the law of Moses; which the prince was enjoined to transcribe and read, Deu_17:18, that he might govern his own and his people’s actions by it.
That thou mayest prosper; or, behave thyself prudently; for the word signifies both. Hereby he intimates that religion is the truest reason of state, and that all true wisdom and good success depends upon piety.