10 Now whom you forgive anything, I also forgive. For if indeed I have forgiven anything, I have forgiven that one for your sakes in the presence of Christ, 11 lest Satan should take advantage of us; for we are not ignorant of his devices. (2 Corinthians 2:10–11, NKJV)
Satan has devices, and we must understand them. If we fail to do so, he will take advantage of us, and lead us into sin. The word “devices” speaks more to the thinking, plans and purposes of the devil, than to the methods or tactics he uses to accomplish those plans (concerning his methods, see Ephesians 6:11). One of his purposes is to undermine peace and unity among Christians. Here, Paul identifies this device of Satan as an unwillingness to forgive a fellow Christian who has repented of his sins. The devil’s purpose is served when Christians are unwilling to reaffirm their love for a fallen Christian who is restored to Christ (2 Corinthians 2:8). When a fallen Christian is disciplined by the church, and brought to repentance, the devil will attempt to use this wonderful blessing to execute his disruptive plan. He tempts Christians to harbor ill will, bitterness and doubt toward the sinner to such an extent that, instead of confirming our love for him, some take a “hands off,” “wait and see” attitude before forgiving him. Such an approach prevents genuine forgiveness. It is not how Christ forgave us (Ephesians 5:31-32). It is a device of Satan; it is sin. We know how he thinks. Do not let him take advantage of you. He seeks your destruction.