2 Corinthians 2
V9: "The reason I wrote you was to see if you would stand the test and be obedient in everything."
Paul follows this with forgiveness of sinners will sustain a disciple to not be outwitted by satan, and we are aware of his schemes.
Love this passage, and it is convicting:
V14 "But thanks be to God, who always leads us in triumphal procession in Christ and through us spreads everywhere the fragrance of the knowledge of him. For we are to God the aroma of Christ among those who are being saved and those who are perishing. To the one we are the smell of death; to the other, the fragrance of life. And who is equal to such a task? Unlike so many, we do not peddle the word of God for profit. On the contrary, in Christ we speak before God with sincerity, like men sent from God."
To God be the Glory.
