We are to God the pleasing aroma of Christ

2 Corinthians 2:1-17
For I wrote you out of great distress and anguish of heart and with many tears, not to grieve you but to let you know the depth of my love for you.
Anyone you forgive, I also forgive. And what I have forgiven—if there was anything to forgive—I have forgiven in the sight of Christ for your sake,  in order that Satan might not outwit us. For we are not unaware of his schemes.
For we are to God the pleasing aroma of Christ among those who are being saved and those who are perishing. To the one we are an aroma that brings death; to the other, an aroma that brings life. And who is equal to such a task? 
On the contrary, in Christ we speak before God with sincerity, as those sent from God. 
The trouble seems to have been personal antagonism to Paul on the part of one man. Now that the church has dealt with him, Paul urges his forgiveness.
After writing the letter, Paul could not rest. He went to Troas hoping to meet Titus on his way back from Corinth with news of the church's reaction. Not finding him there, he crossed the Aegean Sea to Macedonia. The reason for the thanks-giving of verses 14-17 becomes clear in chapter 7. In Macedonia he met Titus, and the news from Corinth was good.
Why?
The victor was followed by his captives and the spoils of war. Paul sees himself as Christ's  slave.
For the captives, the smell of incense had the scent of death about it, as the aroma of CHrist foes for Paul. In the end he will suffer a death like Christ's.
Forgiving is healing and comfort among brothers.  In order that Satan might not outwit us.
How?
Be  a pleasing aroma of Christ, and speak before God with sincerity in Christ.