Savior — Moshia / Soter
מוֹשִׁיעַ
Savior, Deliverer — the Tanakh's title for YHVH ('besides Me there is no moshia'), announced over a manger.
Isaiah stakes the title exclusively to YHVH; Luke's angels announce it over Bethlehem. The NT applies Soter to Father and Son with equal ease — for Messianic readers, Isaiah 43:11 is the hinge on which the whole claim turns.
First occurrence
Isa 43:11 — 'I, I am YHVH, and besides Me there is no Savior'
Key passages
Isa 45:21 — 'A righteous God and a Savior; there is none besides Me'
Luke 2:11 — 'Born to you this day a Savior, who is Messiah the Lord'
Titus 2:13 — 'Our great God and Savior, Yeshua the Messiah'
1Tim 4:10 — 'The living God, the Savior of all men'
In the Greek Scriptures
Σωτήρ