He was fulfilling the OT scripture when He came to sit on David's throne, too.
Acts 2:29-30KJV Men and brethren, let me freely speak unto you of the patriarch David, that he is both dead and buried, and his sepulchre is with us unto this day. Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
But, they rejected Him, didn't they?
Acts 2:36KJV Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ.
That means, it will have to occur at a later time.