Matthew Poole and continuators on Judges 18:6

6 And the priest said unto them, Go in peace: before the LORD is your way wherein ye go.

i. e. Your Journey or Design is under the eye of God. i. e. under his Care, and Protection, and Direction, which the eye of God being upon a person, commonly notes in Scripture, as Psal. 32. 8. and 34. 15. Compare Ier. 39. 12. and 40. 4. So the phrase is here taken in a restrained sense, which is elsewhere taken more largely, as Prov. 5. 21. This Answer he either feigns to gratify their humour; or, did indeed receive from the Devil, who transformed himself into an Angel of Light, and in Gods name gave them Answers, and those not seldom very true, which God suffered for the tryal of his people: See Deut. 13. 1, 2, 3. But it is observable, that his Answer was, as the Devils Oracles usually were, ambiguous, and such as might have been interpreted either way, as they had success or disappointment.