As followers of Christ we're commanded to forgive others, even if they don't ask for it. Unforgiveness disrupts the flow of God's grace, as Jesus teaches that we receive forgiveness from the Father in the measure we extend it to others. Holding onto grudges breeds a "root of bitterness" that defiles not just the individual but those around them, as Hebrews 12:15 urges: "See to it that no bitter root grows up to cause trouble and defile many." This emotional weight manifests as resentment, anger, and anxiety, robbing believers of God's perfect peace. Unforgiveness can also open doors to the enemy to come in and cause physical illness in your body. Many infirmities people have in their bodies are rooted in unforgiveness.