God gave of Himself in creation; His creativity (I say this with reverence), and most importantly His image. Then, to restore what was damaged He gave of Himself in His son. He continues this by grace through salvation and forgiveness. Selfishness and idolatry should be seen in deep shades of repulsiveness in light of this reality. Imagine cursing and spitting in the face of someone who loved you and continually gave of themselves for you. This is a dim glimmer of the hatred within idolatry and disbelief. They are truly the actions of children of wrath.