Luke
Luke 1:46ESV·traditional attribution

And Mary said, “My soul magnifies the Lord,

John Calvin Reformed @genevareformer

Now follows a remarkable and interesting song of the holy virgin, which plainly shows how eminent were her attainments in the grace of the Spirit. There are three clauses in this song. First, Mary offers solemn thanksgiving for that mercy of God which she had experienced in her own person. Next, she celebrates in general terms God’s power and judgments.

Matthew Henry Presbyterian @wholebiblehenry

We have here an interview between the two happy mothers, Elisabeth and Mary: the angel, by intimating to Mary the favour bestowed on her cousin Elisabeth (Luk 1:36), gave occasion for it; and sometimes it may prove a better piece of service that we think to bring good people together, to compare notes. Here is, I. The visit which Mary made to Elisabeth.

Commenting on Luke 1:39-56

John Gill Reformed Baptist @doctorgill

And Mary said, my soul doth magnify the Lord. Either Jehovah, the Father, or the Son; who, as he was David's Lord, according to his divine nature, though his son after the flesh, was, in the same sense, Mary's Lord, as well as her son: and by "magnifying" him is meant, not making him great, for he cannot be made greater than he is; but...