Judges 18:6 - Matthew Poole's English Annotations on the Holy Bible

Your way, 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 Psalms 32:8, Psalms 34:15. Compare Jeremiah 39:12, Jeremiah 40:4. So the phrase is here taken in a restrained sense, which is elsewhere taken more largely, as Proverbs 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 God's name gave them answers, and those not seldom very true, which God suffered for the trial of his people. See Deuteronomy 13:1-3. But it is observable, that his answer was, as the devil's oracles usually were, ambiguous, and such as might have been interpreted either way, as they had success or disappointment.