27 Then he took a cup, and when he had given thanks, he gave it to them, saying, “Drink from it, all of you. 28 This is my blood of the covenant, which is poured out for many for the forgiveness of sins. 29 I tell you, I will not drink from this fruit of the vine from now on until that day when I drink it new with you in my Father’s kingdom.”
If Jesus died for our sins, and we earnestly work on becoming more righteous through repentance, shouldn't we forgive one another? We should, with open arms, welcome God's discipline. It is not because we are not forgiven, it is because He loves so much. He wants us to conform to the image of Christ. Not that we will become Christ, but we will, with each passing day, become more Christ like - and forgiveness of other's and leaving the judgement up to God. Does that mean that we don't correct our brother's and sister's in Christ that have fallen off the narrow road? Certainly not - we are called to do that. But this is something that needs to be taken very seriously. And to stay quiet and act out of anger or to just stop communicating with a brother or sister in Christ is a form of not forgiving that person - in my opinion, that is not conforming to the image of Christ.