Paul's use of the word "Savior"
Paul refers to Jesus as "Savior" only twice outside of the pastorals.
(1). Philippians 3:20 For our citizenship is in
heaven, from which we also
eagerly wait for the Savior, the Lord Jesus
Christ,
(2). Ephesians 5:23 For the husband is head of
the wife, as also Christ is head
of the church; and He is the Savior of the
body.
The Interpreter's Bible..... It was too soon for a title which was commonly associated with the adoration of emperors and mystic gods to be applied to Jesus as a matter of course.