How might we have confidence in the message of the gospel? How do Christians know that the message of the gospel is from the Lord Himself? There have been several different attempts to answer this question of authenticating the message of the gospel. In the Roman Catholic tradition, their trust of the gospel is based upon the authority of the church itself. Since the church declares the gospel is true, then it must be true, they argue. On the other hand, many contemporary evangelicals have argued that we can trust the gospel message because of the historical evidence that proves the central claims of the gospel. In other words, the authority of the gospel is derived from historically verifiable facts. However, the Bible does not need to be authenticated by any authority outside of its own. The primary authority by which we believe the Bible is not the testimony of the church nor the testimony of historical research but rather the testimony of the Holy Spirit. The Holy Spirit, as the author of Scripture, is the supreme and final authenticator of His own words. In our passage for this week, we will see that it is the Spirit Who inspired the gospel message, Who illumines our minds to understand the gospel message, and Who empowers the gospel message to achieve the salvation it proclaims. To come prepared for the sermon, take time this week to read and to meditate upon 1 Peter 1:10-13, Romans 15:4, 2 Timothy 3:15-17, 2 Peter 1:16-21, and Westminster Confession of Faith 1.5,6.