Romans 12:17

Never repay anyone evil for evil. Take thought for what is right and gracious and proper in the sight of everyone.  

We have to train ourselves not to be easily provoked. We know that we live in a world with people who have sinful natures, and we, as Christians, are to behave better. Our spirits must rule over evil circumstances and prevail even when the flesh speaks to us otherwise. God gives us the strength and the Holy Spirit to overcome in times of trial.