Note 8 at Rom. 1:31: Although this phrase "without natural affection" has been interpreted by many to mean homosexual acts, the Greek word suggests something different. The Greek word that is used is "astorgos" which literally means "hard-hearted towards kindred." This describes someone who is unloving and without the natural tenderness that a mother would express towards a child. Therefore, Paul is describing a hardhearted person who is void of love and tenderness.