I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.
Mine angel - Jesus is Lord of the angels.
Unto you - ministers and people in the seven representative churches, and, through you, to Christians of all times and places.
Root ... offspring of David. Appropriate here where assuring His Church of "the sure mercies of David," to Israel first, and through Israel to the Gentiles. Root of David, as Yahweh: offspring of David as man. David's Lord, yet David's son (Matthew 22:42-45).
The ... morning star - ushering in the day of grace in the beginning of this dispensation, and the everlasting day of glory at its close.