How do we know that we all are guilty of murder?

According to Matthew 5:21-22, Jesus reveals that the spirit of the law extends beyond the physical act of murder to include the attitudes of the heart, specifically anger and hatred. First John 3:15 reinforces this reality by declaring that anyone who hates his brother is a murderer. This illustrates that God's law considers not just actions but the intentions and feelings that lead to them. Therefore, all humanity stands guilty of murder in the sight of God due to our inherent sinful nature and attitudes that oppose God's command to love one another.