The point here is that the internal attitude which stems from sinful motives (anger and hatred) here carries the same kind of moral guilt as an act of murder.
That is not a Scripture verse or passage that explains what you said. In fact, your words here do not explain away the words of Jesus in Matthew 5:22, Matthew 5:28-30, Matthew 6:15, etcetera.
We will be judged by the words of Jesus on the last day if we do not receive them (John 12:48).
John 12:48 (NKJV)
“He who rejects Me, and does not receive My words, has that which judges him— the word that I have spoken will judge him in the last day.
Seeing you reject the words of Jesus (in the fact that you don’t believe Jesus’ words about how sin can destroy our souls in the after life), and if you continue to do so (and if you don’t repent of that)…. Those words by our Lord Jesus will indeed judge you on the last day (Whether you want that to happen or not). Sorry. I love you in Jesus, but that’s the cold hard fact or reality, my friend. No Christian should reject the words of Jesus.
You said:Apart from faith in Christ and the blood of Christ, all sin places us in danger of hell fire. Was Jesus threatening believers here about losing their salvation or is that more eisegesis from you?
Jesus was not focused on addressing primarily unbelievers in Matthew 5, Matthew 6, and Matthew 7. His goal was to get people to believe and be believers.
For example: If Jesus was talking about unbelievers in Matthew 6:15, then it would be pointless because if they (being an unbeliever) would have forgiven everyone in the whole world and yet if they did not accept Jesus Christ as their personal Lord and Savior (being an unbeliever), then they are still doomed and on their way to hell. So Jesus is not talking to unbelievers in Matthew 5:22, Matthew 5:28-30, Matthew 6:15, etcetera. Jesus is talking to believers here.