1 Kings 2:3

And keep the charge of the Lord thy God,.... Which may in general respect his whole walk and conversation, and his obedience to the law and will of God; and in particular his just government of Israel committed to his charge:

to walk in his ways; directed to in his word:

to keep his statutes and his judgments; his laws, ceremonial, moral, and judicial:

and his testimonies; as the above laws, which testify of his mind, and declare what he would have done and observed:

as it is written in the law of Moses; which a king of Israel was obliged to write a copy of, keep by him, and read it, and rule according to it, Deuteronomy 17:18:

that thou mayest prosper in all that thou doest, and whithersoever thou turnest thyself; to reign in righteousness, and according to the law of God, is the only way to have a prosperous and happy reign: or "that thou mayest act wisely" p; the law of God furnishing out the best rules of government and maxims of policy; see Deuteronomy 4:6.

p למען תשכיל "ut prudenter agas", Montanus, Tigurine version; "ut intelligas universa", V. L.