Luke
Luke 1:39ESV·traditional attribution

In those days Mary arose and went with haste into the hill country, to a town in Judah,

John Calvin Reformed @genevareformer

39. And Mary arising This departure mentioned by Luke proves that Mary’s faith was not of a transitory nature: for the promise of God does not fade away with the presence of the angel, but is impressed upon her mind. The haste indicates a sincere and strong affection. We may infer from it that the Virgin disregarded every thing else and formed a just estimate of this grace of God.

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 arose in those days,.... The Ethiopic version renders it, "in that day"; directly, immediately, as soon as the angel was gone from her; partly to know the truth of things, and to make use of the sign which had been given her, for the further confirmation of her faith, which was very right and proper for her to do; and partly to converse...