Do we know this saviour elohim in Luke 1:48; 2:11?
This is a self-evident question from the text, but a saviour acts for and on behalf of The Saviour who is Eloah. These are delegated titles as is Yahovah and Elohim. Job 33:23 (RSV) shows that one of the angels of the thousand could act and was to act as redeemer. The Angel of Redemption was the elohim of the Patriarchs (Gen. 48:15-16).