Albert Barnes Commentary Luke 1:39

"And Mary arose in these days and went into the hill country with haste, into a city of Judah;" — Luke 1:39 (ASV)

And Mary arose. The word arose here is equivalent to setting out, or starting on a journey.

The hill country. The region in the vicinity of Jerusalem, commonly called the hill country of Judea.

City of Juda. What city is meant is not known. Some have supposed it to be Jerusalem, others Hebron; but all is conjecture. It was probably a Levitical city, and the residence of Zacharias when he was not employed in the temple.