Theodore Epp emphasizes the eternal nature of Christ in his sermon 'Christ Eternal!', explaining that Christ is the 'firstborn of every creature' not in the sense of being born first, but in terms of His sovereignty and priority over all creation. He highlights that Christ existed before anything was created, as affirmed in Colossians 1:16, and that all things were made through Him, underscoring His role as the Creator. Epp connects this truth with John 1:1-3, reinforcing that Christ is uncreated and eternal, and he cites Psalms 89:27 to illustrate Christ's supreme rank. Ultimately, he concludes with the assurance that Jesus Christ remains the same throughout all time, as stated in Hebrews 13:8.