"The law of his God is in his heart; none of his steps shall slide." (Psalm 37:31)
Put the law into the heart, and the whole man is right. This is where the law should be; for then it lies, like the tables of stone in the ark, in the place appointed for it. In the head it puzzles, on the back it burdens, in the heart it upholds.
What a choice word is here used, "the law of his God"! When we know the Lord as our own God His law becomes liberty to us. God with us in covenant makes us eager to obey His will and walk in His commands. Is the precept my Father's precept? Then I delight in it.