I thought I explained already, but I'll try again. First I will give you my personal translation based on the Hebrew.
Isa 9:6 For to us a child is born, to us a son is given; and the government shall be upon his shoulder, and his name shall be called Wonderful Counselor, Mighty Warrior, Father of Eternity, Prince of Peace.
He is a "Wonderful Counselor" (Pele' Ya'ats) because he advises us on how to walk in YHWH's will in accordance with Torah. He is a "Mighty Warrior" (El Gibor) because YHWH will use him to destroy the wicked and the armies of Satan. He is the "Father of Eternity" (Abi'ad) because eternal life comes to all believers through him. He is the "Prince of Peace" (Sar Shalom) because he is the Son of King YHWH and peace will come to this planet through him and will be maintained by him.
This passage is written for the express purpose of informing people that YHWH has not left us to dwell in darkness and perish, but will provide us a male child who will not only grow up to become the ultimate ruler of YHWH's Kingdom on earth, but that he will be a blessing to his people in all the ways just mentioned.