Be ye kind one to another, tender-hearted, forgiving each other, even as God also in Christ forgave you. Ephesians 4.32.
brother once said: “If a little brother sins against me, I can forgive him; but if a big brother sins against me, I cannot forgive him.” Another brother who heard him say this looked at the chest of this brother and nodded his head continuously. What he meant by this gesture was: “Your heart! Your heart! In forgiving a little brother but not forgiving a big brother, you expose what your heart is like.
The fact that a little brother sins against you and is forgiven by you cannot at all expose your true heart condition; but when you refuse to forgive a big brother who sins against you, that really reveals what is in your heart.” Through this incident, that brother’s unforgiving heart was unveiled.