Jesus is the Vision (Genesis 15).
In Genesis 15:1-6, God spoke to Abraham about His promise of an offspring. Then in verses 13-20, God spoke to him again about the promised offspring. This tells us that the covenant is all about the offspring.
That offspring is Jesus. He is the substance of the covenant. The covenant is all about Him!
Listen to the sermon: http://christ-opc.org/2017/03%2012%202017%20-%20Glem%20Melo%20-%20Covenant%20Vision.mp3