Israel herself serves as a compassionate expression of God’s desire to save us. God used His discipline upon His nation-child to turn her, and all succeeding generations, from the eternal dangers of idolatry. Through the inability of Israel’s idols or good works to save her from the consequences of sin, we learn that we must trust in the eternal salvation offered by the divine Child of her own progeny. Ultimately, we know of the horror of sin and the necessity of grace because the consequences that Israel experienced in an illustrative way actually fell upon God’s Son.
From: Holiness by Grace: Delighting in the Joy That is Our Strength by Bryan Chapell (Wheaton: Crossway Books, 2001), p. 99.