Here’s Tim Gray’s take on it. I think it’s pretty interesting. It shows that God has come down and joined His people again:
It happened in those days that Jesus came from Nazareth of Galilee and was baptized in the Jordan by John.*** On coming up out of the water he saw the heavens being torn open* (schizo) and the Spirit, like a dove, descending upon him.** (1:9-10) Schizo means to tear asunder. The only other time this phrase occurs is the veil being torn asunder in the Passion. Mark is wanting to show that Heaven and the Cosmos are dramatically impacted by this Baptism. There is now a connection between Heaven and Earth that never existed until Jesus is baptized. Isaiah 64:1 comes in a crucial point in the prophecies of Isaiah. After hearing in Isaiah 40 of a new Exodus, and a new beginning, now time has passed - and nothing has happened. The people get weary, so after time, the people are crying out, they lament, “Lord where is this Exodus”! In the middle of this lament, we come to Isaiah 64,*** “Oh (Lord), that you would rend (schizo) the heavens and come down*, with the mountains quaking before you**,” (Is. 64:1). Would you, Lord, come down and fix this mess that we’re in. Where are you God, that we are still in exile. Would you rend the heavens, again the word used is Schizo. What Mark is saying that, here at the Jordan, that long-awaited Exodus is here! The exodus is happening, and it has been created in the form of Jesus! This New Exodus is a theme that is recurrent in Mark.
Notworthy