(and the life was revealed, and we have seen, and testify, and declare to you the life, the eternal life, which was with the Father, and was revealed to us);
This life manifested ... Moffatt was doubtless correct in capitalizing "Life" in both verses.  "Manifested" is a term frequently used in the New Testament of the appearance of the Son of God in flesh (1Tim. 3:16,1Pet.  1:20,1 John 3:5,8).  It is further illuminated by the counterpart of it in the gospel, "The word became flesh and dwelt among us" (John 1:31).  John also used the same word to describe the resurrection appearances of Jesus (John 21:1,14).