. . . has in these last days spoken to us by His Son . . .
In these last days, something more wonderful has happened. The same God who spoke through the prophets is now speaking through the Son. Christ is not just one in a long line of successive revelations; instead, He is God’s final revelation. This means that Christ is God’s last word on the matter and you can’t add anything to what He has already completed. God’s self-disclosure in Jesus Christ is the same yesterday, today, and forevermore.