Blessing is the overflow of God through someone’s maturity in life. God cannot flow Himself into others without a human channel. If Christ had never been incarnated, God would not have been able to flow to man, because there would not have been a channel. God’s flowing needs humanity as a channel. The only humanity God can use as the channel is one saturated and permeated with God [Philippians 1:23-25]. For this reason Jacob did not bless anyone until he had become mature. Jacob did not bless Laban or Esau. Even when he saw his brother Esau after the twenty years with Laban, he did not bless him. It was not until he went down into Egypt that he blessed Pharaoh, the highest ruler on earth (Genesis 47:7, 10). At that time Jacob was filled with God. Through Jacob’s blessing of Pharaoh God’s blessing overflowed to Pharaoh.
A child two years of age cannot bless anyone; however, a child of seven or eight may perform some kind of blessing. This illustrates the fact that blessing others depends upon maturity in life. Maturity in life is a matter of being filled with God. When you are full of God, you have the overflow of God, and thus you are able to bless everyone you meet. (Life-study of Genesis, msg. 95, by Witness Lee)