Luke 1:47

And my spirit hath rejoiced in God my Saviour. Which also, may be understood, either of God the Father, who was her Saviour, both as the God of nature and providence; so the Persic version renders it, "in God that gives me life"; and who had supported, maintained, and preserved her life; and as the God of grace, who has contrived the scheme of salvation, fixed upon, and appointed Christ to be the Saviour; and who saves by him, and therefore is sometimes said to be our Saviour. Titus 3:4 or of Christ, the Son of God, who being truly and properly God, was fit to be a Saviour; and is a very suitable, able, and willing one; and which is the great encouragement to sensible sinners, to look up to him, and be saved; and lays a solid foundation for rejoicing in him, since what he did as man, had hereby an infinite virtue and efficacy put into it, as was put into his blood, sacrifice, and righteousness; whereby the purposes designed were answered by them; and since he must be able to keep their immortal souls, which they commit unto him, and must have an interest with his Father, as their advocate, and a fulness, to supply all their wants: the consideration of Christ, by Mary, as God her Saviour, as having an interest in him, as a Saviour, and this her Saviour, God, gave her greater joy, than being the mother of him as man; and this her joy was not carnal, nor merely external, but inward and spiritual: it was a joy in her own spirit, and was excited there by the holy Spirit of God.