The Bible says, “Anyone who hates his brother is a MURDERER .”
"You have heard that it was said to the people long ago, 'Do not murder, and anyone who murders will be subject to judgment.' But I tell you that anyone who is angry with his brother will be subject to judgment . Again, … anyone who says, 'You fool!' will be in danger of the fire of hell . - Matthew 5:21,22
Isaiah 53:5-6 But he was pierced for our transgressions, he was crushed for our iniquities; the punishment that brought us peace was upon him, and by his wounds we are healed. … and the LORD has laid on him the iniquity of us all.
What is repentance? “ True and godly repentance includes a deep remorse for having offended God. The repentant person openly and fully confesses his sin with no attempt to excuse it or justify it. This acknowledgement of sin is coupled with a willingness to make restitution whenever possible and a resolve to turn away from sin.” - R.C. Sproul
John 14:1-2 Do not let your hearts be troubled. Trust in God; trust also in me. In my Father’s house are many rooms; if it were not so, I would have told you. I am going there to prepare a place for you.