Deuteronomy 10:15-16—Only the LORD had a delight in thy fathers to love them, and he chose their seed after them, even you above all people, as it is this day. Circumcise therefore the foreskin of your heart, and be no more stiffnecked.
I love this expression, “set his affection”. Not only has God set His affection on our forefathers in the faith, but He has set His affection on us. It was not anything good that we did. He sovereignly chose to set His affection on you! He loved you and chose you. So what should be your response? Circumcise your hearts. Abraham had been given the ritual of circumcision confirming the covenant between God and himself. It was a physical illustration of an inner transformation that was to take place. This transformation is an act God is requesting us to do. “Make your heart tender toward me,” God asks us. “Don’t act like you don’t hear when I call.” If we allow our hearts to be tender toward God, one word from Him and we will be at His feet waiting to hear what He has to speak to us. “Samuel, Samuel,” God called out. Little Samuel had a circumcised heart. He heard. He responded. When God calls your name do you respond? Do you even hear Him call? Once we have received His affection set upon us, realized His love and calling to us, we must respond by making our heart tender toward Him. We must respond by yielding our ear, by being quick to hear and respond. We can no longer go the way of our own choosing.