In the sermon on the topic "blessed by my enemies" Leo Bigger speaks about how enemies can strengthen us. He emphasizes that friends support and motivate us, but challenge us and make us reflect on ourselves. Leo explains that God sometimes allows enemies strategically in our lives to promote us and help us to develop us further. He encourages us to see our enemies as stumbling blocks that make us bigger instead of bringing us down. Leo shares personal examples from his own life and emphasizes the meaning of standing on the right of God and led by him. The sermon ends with an invitation to take bitterness and resentment and rely entirely on God.