How do we know that God opens doors for preaching the Gospel?

In Colossians 4:3, Paul asks the believers to pray that God would open doors of utterance for him to proclaim the mystery of Christ. This highlights a key principle in sovereign grace theology: the belief that God is actively involved in opening opportunities for His people to witness and share the Gospel. It emphasizes our reliance on God’s sovereignty in salvation, affirming that without His divine initiative, the proclamation of the Gospel would be ineffective. Thus, prayer for God’s intervention is vital in our efforts to spread His word.