How do we know that Paul received the gospel by divine revelation?

In Galatians 1:11-12, Paul firmly states that the gospel he preached was not taught to him by any human being. He emphasizes that his knowledge and understanding of the gospel came entirely through a direct revelation from Jesus Christ. This reinforces the belief in the divine origin of the gospel, as it conveys that the teachings and doctrines Paul proclaimed were not merely human insights but were divinely inspired truths. The historic Reformed position affirms this understanding of revelation, emphasizing that true knowledge of God and His plans is revealed through Scripture and the Holy Spirit.