Part 1 of 4. The chapter before us breaks down into two main scenes. In the first, we find the promise and the struggle to believe in verses 1 -15. We have already seen God giving Abraham assurances of the promises and bolstering his faith and here we find God doing the same for Sarah. Then in the second scene, we find the plan and the intercession. God has a plan, which included Abraham and his prayers for the lost.