Mary speaks of the Lord God as “my Savior,” using language familiar
from Hab 3:18 (cf. Ps 24:5; Isa 12:2; Zeph 3:17). How she perceives God fulfilling this role and, thus, why she praises him thus are outlined in
the ensuing verses. The use of the verb “rejoice,” in this particular setting
where “joy” and “gladness” are related to the eschatological coming of God (vv
14, 28, 44), already provides strong hints, however. (Joel B.
Green, The Gospel of Luke [The New
International Commentary on the New Testament; Grand Rapids, Mich.: Eerdmans,
1997], 102)
