Luke 1:79 - Ellicott's Commentary On The Whole Bible

To give light to them that sit in darkness. — The words are an echo of those of Isaiah 9:2, which we have already met with in Matthew 4:16, where see Note. Here they carry on the thought of the sunrise lighting up the path of those who had sat all night long in the dark ravine, and whose feet were now guided into “the way of peace,” that word including, as it always did, with the Hebrew, every form of blessedness.