The Holy Spirit coming made all persons equal before God. Holy Spirit canceled out all distinctions based on blood or special privilege. Acts 1:14 says that among those who devoted themselves to prayer were "Mary the mother of Jesus, and His brothers." How easy it would have been to have established a privileged line through those who were closely related to the Lord.
Mary, Mother of our Lord Jesus Christ, blessed though she was, waited together with the others for the coming of the Holy Spirit. And when she received Him, she received Him on the same basis as the others - by faith in Christ as Savior and Lord. All were equal.
The story is told of two men joining a church on the same Sunday. One was a respected judge in the community. The second, a Chinese immigrant, laundryman. The pastor said, "At the foot of the cross, the ground is level." The blood of God's Son has made it possible for us all to become sons of God. Praise be to God!
The thought occurs to me--without Him, we are nobody (no matter who we are). In Him, we are made "more than conquerors," "sons of God," and we can accomplish ALL things in Him!