We must testify, proclaiming the glory of God. It is the Spirit of God who sets our heart afire to want the whole world to know that God is love and that he wishes to save us. As Jesus said to the Pharisees, "If his disciples keep silent, the stones will cry out!" (Luke 19.40), and we are certainly more sensitive than stones. We must never stifle the Holy Spirit, but respond to his every prompting.