The God of King David certainly sounds like the description of the Dragon, does it not?
2 Samuel 22:
7In my distress I called upon the LORD, and cried to my God: and he did hear my voice out of his temple, and my cry did enter into his ears.
8 Then the earth shook and trembled; the foundations of heaven moved and shook, because he was wroth.
9 There went up a smoke out of his nostrils, and fire out of his mouth devoured: coals were kindled by it.
10 He bowed the heavens also, and came down; and darkness was under his feet.
11 And he rode upon a cherub, and did fly: and he was seen upon the wings of the wind.
12 And he made darkness pavilions round about him, dark waters, and thick clouds of the skies.
13 Through the brightness before him were coals of fire kindled.
Did King David serve the Dragon?
(Psalms 18:6-13 repeat the same words as above.)