1. Be both wise and innocent (17-19)
Satan is always busy trying to sow doubt and discord among brothers. Especially, he makes use of those who enjoy the peace salvation brings but dislike the cross of mission. Such people try to justify their selfish lives by encouraging others to join them. We must keep God's word in our hearts and not be deceived. We must ask God to crush Satan under our feet.
2. The grace of our Lord Jesus be with you (20)
God promised to crush Satan's head (Ge 3:15). He sent Jesus to die on the cross, and raised him from death to do this. God's grace given us through our Lord Jesus Christ saves us from sin and fills our lives with God's love. Grace is a free gift of love. If the grace of Jesus is with us in all of our relationships and in all our activities, we have victory and joy.
Application: Lord, crush Satan's ugly head when it rises in my heart. Fill me with the grace of forgiveness and the grace of your love and the grace of mission.
One Word: The grace of Jesus be with you