That Luke speaks of the finger of God, where Matthew has said, the Spirit, does not take away from their agreement in sense, but it rather teaches us a lesson, that we may know what meaning to give to the finger of God, whenever we read it in the Scriptures.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de cons. Ev. l. ii. c. 38.