The Hebrew Bible reserves the title *Savior* exclusively for YHWH — the one God who declares, "besides Me there is no savior." When the inspired authors of the New Testament apply the compound Greek title *Theos Sōtēr* — God and Savior — to Jesus Christ, they are making not a devotional flourish but a precise theological claim: the man from Nazareth, crucified and risen, is the God of Israel incarnate. This article examines that claim through the lens of the Old Testament background, New Testament grammar, first-century linguistic milieu, and the unanimous testimony of the Catholic and Orthodox traditions.