The goal of your sermon for 1 Samuel 27 is to encourage Christian believers to be shrewd (wise) in their service to Christ. You will begin by showing how David is presented as a shrewd King who uses his time in exile to do good for God’s people. Knowing that David serves as our model for what the true Christ will do when he comes, you can then explain how the Lord Jesus Christ also acted in a shrewd manner. Finally, in concluding your sermon, it would be good to think about what shrewdness in evangelism might look like in the places where church members live and work.
1 David dit en lui-même: je périrai un jour par la main de Saül; il n'y a rien de mieux pour moi que de me réfugier au pays des Philistins, afin que Saül renonce à me chercher encore dans tout le territoire d'Israël; ainsi j'échapperai à sa main.