How do we know God's revelation is necessary for understanding the gospel?

In Galatians 1:11-12, Paul underscores that the gospel he preached was not derived from human wisdom but received through the divine revelation of Jesus Christ. This emphasizes that true understanding of the gospel cannot be grasped by mere human effort or intellect; it requires God to reveal His truths to our hearts. This theme is echoed throughout Scripture, notably in Matthew 11:25 where Jesus thanks the Father for hiding truths from the wise and revealing them to infants. Leaning on God's mercy and seeking His revelation exemplifies our reliance on Him for spiritual understanding.