Hebrews 1:2,
         The Father "hath in these last days spoken unto us by His Son, whom hath appointed heir of all things, by whom also he made the worlds,"
         and sat down at the right hand of the majesty on high.
"And Thou Lord, in the beginning hast laid the foundation of the earth; and the heavens are the works of they hands."

The Christ was participating in the creation with the Father.
He was with the Father from eternity past.
He existed before He took upon Himself flesh to dwell among us.