On the seventh day we know that God rested. I believe that God watched American League baseball on T.V. and hoped that we humans would always remember that we were created in the image of God who loves to bless and blesses to love. We did not remember for very long. The Bible says that Cain killed Abel, but we, too, are skilled at dealing death of another kind with snobbish silence or wicked words. Maybe, at its root, sin is the opposite of blessing.
Sin is greed, injustice, intolerance.
Sin is dishonesty, insensitivity, and a hundred other things that close us off from the life and love of God. Human beings do it well. Maybe that is why, in the fullness of time, God just stopped reaching out across the chasm dividing humanity and Divinity. Instead, God built a bridge and crossed over it in the person of Jesus of Nazareth. Jesus is blessing.