The Hebrew word pala ["Wonderful"] indicates "something uncommon or out of the ordinary." It reflects "a phenomenon lying outside the realm of human explanation; that which is separated from the normal course of events; something that cannot be explained." And that is our Almighty and inexplicable Jesus!
The second part of this compound description of the coming Messiah is Counselor. In its historical Hebrew usage, the word is used to picture a king giving counsel to his people. To that end, Micah declared the dilemma of the captives in Babylon this way, "Now why do you cry aloud? Is there no king in your midst? Has your counselor perished?" (Micah 4:9)
Some have separated these two but the Old Testament Hebrew Bible puts them together. Isaiah defines this graphic title:
Isaiah 11:2 And the Spirit of the Lord will rest on Him, the spirit of wisdom and understanding, the spirit of counsel and strength, the spirit of knowledge and the fear of the Lord.
Isaiah 28:29 This also comes from the Lord of hosts, Who has made His counsel wonderful and His wisdom great.
True wisdom from the wonderful counselor knows that: In weakness is strength; surrender is victory and death is life.
Taken from "The Fourth Glory of Christmas – His Name" by Discover the Book Ministries (used by permission).