God is holy and therefore he cannot look upon sin. While Jesus was hanging on the cross he took our sins upon himself and therefore, God had to abandon him at his darkest hour. Jesus became our substitute while hanging on the cross so that we could have a right relationship with God. Our sin separates us from God and brings a sense of loneliness and sometimes even abandonment. Because Jesus experienced loneliness and alienation from God while hanging on the cross, he can offer help to us when we experience loneliness and alienation.