The gospel message has not changed over time. People still need to have their sins forgiven in order to go to heaven. They need to receive spiritual life from God that they cannot attain on their own. The gospel preached by the apostle Paul contained the same elements as the message is comprised of today. And he depended on the power of the Word of God to reach the hearts of sinners, just as we do today. Yes, trusting Christ should be the only sane response to the gospel message.There is far too much at stake to treat the message lightly. One day you will hear God's calling for the last time. Be wise and heed it today, won't you?