Jesus Comes to fulfill the promises of God.
His life (As God and Man) was the perfect fulfillment of what Israel failed to do.
His Death (As God and Man) was the fulfillment of the suffering servant who conquered sin, death and the devil.
His Ascension (As God and man) was accomplished that we might have an Advocate with the Father.
His ascension provides true authority
His ascension provides the very glory of God as fulfilled in the Church.
His ascension provides the promise that Christ is with us still.