Many people shall go and say... — What was precious to the prophet’s heart was the thought that these pilgrims from afar would not come as with a formal worship like that of Isaiah 1:10-15, but, like the queen of Sheba (1 Kings 10:1-10), as seekers after truth, desiring to be taught. (Comp. Isaiah 60:3.) The “ways” and the “paths” are the great laws of righteousness, which lead to the eternal life. The verb for “teach” is the root of the Hebrew for “law,” as the “teaching” of Jehovah.
Shall go forth the law... — In the preaching of the Christ, in the mission of the Twelve, in the whole history of the Apostolic Church, we have, to say the least, an adequate fulfilment of the promise. The language of St. Paul, however, suggests that there may be in the future a yet more glorious mission, of which Jerusalem shall once more be the centre (Romans 11:12-15).