DANIEL 4:13: “I saw in the visions of my head upon my bed, and, behold, a Watcher and an holy one came down from heaven.” KJV
Daniel 4:23: “And whereas the king saw a Watcher and an holy one coming down from heaven, and saying, Hew the tree down, and destroy it; yet leave the stump of the roots thereof in the earth, even with a band of iron and brass, in the tender grass of the field; and let it be wet with the dew of heaven, and let his portion be with the beasts of the field, till seven times pass over him.” KJV
Watcher: “(woch’‑er) (Aramaic ‘ir, “wakeful one”): In Nebuchadnezzar’s dream (Daniel 4:13,17. 23 (Matthew 10:14,20)) a messenger who with “a holy one” descended from heaven, they having joint authority to issue decrees.
In the apocryphal literature the doctrine of the “Watcher” is much elaborated. In Jubilees they are regarded as angels sent to instruct mankind in righteousness. In Enoch they sometimes appear as archangels and at other times as fallen angels. In the latter condition only we find them in the Book of Adam and Eve. The place of descent was according to Enoch 6:6 the summit of Mt. Hermon.” (from International Standard Bible Encyclopaedia, Electronic Database Copyright (c)1996 by Biblesoft)
Watcher: (“Start Hebrew”ryu! “End Hebrew”, wakeing), a class of angelic beings mentioned in the description of Nebuchadnezzar’s dream (Daniel 4:13‑17). The Chaldeans appear to have believed that God had delegated the moral government of the earth to celestial spirits, who had the charge of making inquisition into human actions, and punishing the guilty.” (from McClintock and Strong Encyclopedia, Electronic Database. Copyright (c) 2000 by Biblesoft)