Matthew 1:20
But while he was thinking of these things, behold, an angel of the Lord appeared to him in a dream, saying: Joseph, son of David, fear not to take home Mary your wife; for that which is begotten in her is of the Holy Spirit.
Matthew 2:13
When they had departed, behold, an angel of the Lord appeared to Joseph in a dream, saying: Arise, and take the young child and his mother, and flee into Egypt, and be there till I bring you word; for Herod is about to seek for the young child, to destroy him.
Acts 18:9-10
And the Lord spoke to Paul by a vision in the night: Fear not; but speak, and be not silent;
Acts 27:23
For there stood by me this night an angel of God, whose I am, and whom I serve,