Jesus teaches that His words will be the final standard of judgment in the last day. Those who reject Him and His message face eternal consequences. The word of God is not just a moral guideline but the very thing by which all will be judged. This emphasizes the gravity of accepting or rejecting the gospel. Those who deny Christ are not merely rejecting a teacher; they are rejecting the means of salvation. The word of God, as spoken by Christ, is the measure by which we will be judged, and it carries both a promise of eternal life and a warning of judgment. This verse challenges us to examine how we respond to God's word today, as our eternal fate hinges on our acceptance or rejection of Christ's message.