Luke
Luke 1:42ESV·traditional attribution

and she exclaimed with a loud cry, “Blessed are you among women, and blessed is the fruit of your womb!

John Calvin Reformed @genevareformer

42. Blessed art thou She seems to put Mary and Christ on an equal footing, which would have been highly improper. But I cheerfully agree with those who think that the second clause assigns the reason; for and often signifies because. Accordingly, Elisabeth affirms, that her cousin was blessed on account of the blessedness of her child.

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 she spake out with a loud voice,.... So as that all in the house might hear; she spake with great vehemency of soul, and strength of affection, being under a very powerful impression of the Spirit of God: and said, blessed art thou among women; the same words that the angel had said to her before, Luk 1:28.