Then the men feared the LORD exceedingly, and offered a sacrifice unto the LORD, and made vows.
Ver. 16. Then the men feared the Lord exceedingly] Heb. with a great fear. They feared before, John 1:10, with a natural fear; but now they feared Jehovah. They began to bear all awful respect to the Divine majesty, of whose power and goodness they were by this miracle clearly convinced, and, as it may seem, to the true faith effectually converted.
For they offered a sacrifice to the Lord] They sacrificed spiritual sacrifices presently (that holocaust of themselves, Romans 12:1, that broken heart that lieth low and heareth all that God saith, giving thanks to his name, Heb 13:15), and resolved to cover God's altar at Jerusalem upon their safe arrival, as the Chaldee here paraphraseth.
And made vows] That the true God should be their God (as Jacob, the father of vows, promised, Gen 28:21), and that they would bestow cost on the temple, on the poor saints, to feed and clothe them, as Isaiah 23:18 .