 And God says in the book of Isaiah 59, the arm of the Lord isn't too short to save, his ear's not too dull to hear. Your iniquities have separated you from God. Your sins have hidden his face from you, so he will not hear. So if you're living in overt sin, don't expect your prayers to be answered. The psalmist says in Psalm 66, if I regard iniquity in my heart, the Lord will not hear.