How do we know the gospel has been revealed to us?

The evidence that the gospel has been revealed to us can be observed through a profound internal transformation and the recognition of our need for salvation. In the sermon, it is stated that those to whom the gospel is not hidden will see their spiritual condition, acknowledging that they were lost and have now been found. This change is a work of the Holy Spirit, who awakens our understanding and enables us to grasp the truth of Christ's atoning sacrifice for our sins. When we can rejoice in knowing Jesus as our savior, this serves as a powerful confirmation that the gospel has not remained hidden to us but has brought us into the light of God's grace.