For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek.
(Romans 1:16 ESV)
The gospel is not only powerful but it is God’s power for salvation. The gospel is real, alive and it can change people’s lives. Wow. That’s why Paul was not ashamed of it, because He saw what the gospel could do and because the gospel was not from Paul but it is from God Himself… Praise the Lord!