These verses contain many insights for those wishing to evangelize including we are one body so minimize/ignore differences, we are to preach the Gospel, the power of God, not our denominational or such views, Christ is the head and focus not a pastor or teacher, a style of baptism, etc. The ending verses powerfully show that God has chosen what could be considered foolishness and is not the wisdom of the world to win souls and show Himself. Finally, the verses illustrate God uses those He calls, and we are not perfect, not the wisest not and, in the world's eyes, not the best but He chooses and uses us!
