Deuteronomy 4:5-6

The institutes of Moses were the commandments of Jehovah, and therefore obedience to them was imperative. By this was conditioned the enjoyment by Israel of the Promised Land; and this would be their wisdom and understanding in the sight of the nations ; to themselves it would be life, and to the nations it would convey an impression of their being the depositories of true wisdom and knowledge, so that they should be constrained to say, Surely a wise and understanding people is this great nation. "The fruit of the righteous is a tree of life; and he that is wise winneth souls" ( Proverbs 11:30 ). God's statutes make wise the simple ( Psalms 19:8 ; Psalms 119:98 , Psalms 119:99 ); and they who are thus made wise attract the attention of others by the fame of their wisdom. Thus the Queen of Sheba heard in her distant country of the wisdom of Solomon, and came to him to commune with him of all that was in her heart ( 1 Kings 10:1 , etc.); and many throughout the ages who were seeking after truth among the heathen, were drawn to Israel by seeing how with them was the true knowledge of God. Israel was thus exalted because God was nigh to them, ready to hear their cry and to give them what they needed; which none of the gods of the nations were or could be to their votaries; and because, in the Law which God had given them, they had such instruction and direction as no heathen nation possessed.