A sponge soaks up, absorbs, water in which it is placed. If you squeeze it first before placing it in the water, then loosen it when it is fully submerged, it soaks up so much water that it is utterly full of it. Jesus is so filled with acceptance of all the fulness of all the teachings and wisdom and knowledge of the One who sent him. He is so full of all this from God that if you see him you see this One who sent him. He is one with the Father in this sense. It would be great if we were too. This comes from having a spirit of revelation from God. It makes the one filled this way so much like the Father. Just as Jesus is so much like the Father. Jesus is full of the teachings of the Father who shows it all so much to Jesus, who holds to these teachings, that it conveys on Jesus the very way of thinking of things that the Father has. Holding to his teachings we can become like Jesus, if we truly believe in him. This gives us unity with each other, just like the unity Jesus has with God.
