Romans 12:19-21-Beloved, never avenge yourselves, but leave it to the wrath of God, for it is written, “Vengeance is mine, I will repay, says the Lord.” 20 To the contrary, “if your enemy is hungry, feed him; if he is thirsty, give him something to drink; for by so doing you will heap burning coals on his head.” 21 Do not be overcome by evil, but overcome evil with good. 
 
If you ever had to think through what is logical, and what is biblical to do in certain situations, you can find yourself really having to let go of your own logic, which can be tough.  For example I taught my son to defend himself if someone bullies him, which seems logical.  But to be biblical, there is no reference point in defending yourself.  On the contrary, Jesus wants us to be humble enough to give the other cheek, which truly takes supernatural grace! (Luke 6:29)
Yet that is the point of the Christian life.  So much of our logic doesn’t point to an overall desire to fulfill the purpose of God in every situation of life.  Much of our logic is self-preserving, which is not bad, but not always good.  Logic alone can take away the need for faith and humiliation to fulfill God’s will and purpose…
In the command to “never avenge yourselves” is daunting, when you think about tragic things happening to people you love at the hands of evil.  But it is those type of thoughts and situations, that take supernatural grace not to avenge ourselves and on the contrary serve that enemy!  Such a predicament feels illogical!
For most of us it doesn’t take tragedy to be overcome with evil.  Because we can become bitter over people and situations in our lives, that don’t qualify as tragic.  But to overcome evil with good, is to trust God through evil.  Now we recognize how desperately we need to walk by faith, or we live overcome by bitterness and a desire for revenge.
Overcoming evil with good is what Christ did on the cross for us.  So when God demands what seems “illogical”,  we can first look to His love for us in spite our constant evil towards Him.  So we don’t think we have the right to withhold forgiveness, faith, and love, that would be illogical.
In His Love, Ld