In keeping with the goal of the middle section of Mark’s Gospel, your sermon must explain to people what Jesus expects from those who wish to follow him. In essence, you are explaining to people what the Christian life involves and what true faith in Jesus should look like. Your explanation will need to highlight the fact that Jesus calls us to this life on account of who he is (Mark 8:29) what he has done for us (Mark 8:31) and what he will do when he returns (Mark 8:38).
Your explanation will focus in particular on the Bible’s teaching regarding marriage, divorce, and remarriage. It should therefore be as practical as possible in order to help people understand how biblical principles should be applied in their life and circumstances.
1 And he left there and went to the region of Judea and beyond the Jordan, and crowds gathered to him again. And again, as was his custom, he taught them.