Firstborn of the Dead

Revelation 1:5 “And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us and washed us from our sins in his blood.” Jesus is the prototype (mold) of the His body (the Ekklesia) and our new life.

Philippians 1:6 “Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ.”

He (God) hath began [G1728 (2x)]: to make a beginning. [G756]: a beginning.
Will Perform [G2005 (11x)]: to bring to an end, accomplish, perfect, execute, and complete.
Until [G891]: the idea of terminus (completion), of time, as far as, till, etc.