From the time the world was created, God’s blessings are manifest. The midrash describes the development of blessings over time. The very first to offer blessings was God, Who blessed Mankind. After the sins of the generation of the flood, that blessing was nullified and it was replaced with a new blessing, bestowed upon Noah by God. With the appearance of Abraham, God added a blessing on him, as well. From that point onwards, those who were blessed passed on God’s blessings to others.