Isaiah 8:14 - Matthew Poole's English Annotations on the Holy Bible

Your sanctuary; a sure refuge to all that truly fear him, and rely upon him. For a stone of stumbling and for a rock of offence; an occasion of sin and ruin, at whom they will take offence and stumble, so as to fall and be broken, as it is expressed, Isaiah 8:15. To both the houses of Israel; to the two royal families of Israel, largely so called; that of Judah, to wit, the house of David; and that of Ephraim: or, to the two kingdoms, that of the ten tribes, and that of the two tribes. For a gin and for a snare to the inhabitants of Jerusalem; which are distinctly mentioned, as a very observable and wonderful thing, because Jerusalem was the seat of the temple, and of God's solemn worship, where all the means of knowledge and grace were in greatest power and plenty, where the thrones of civil and ecclesiastical judicature were established, where the most wise and learned doctors had their constant or frequent abode. And that such a place and people should reject Immanuel, or their Messiah, when he should appear, was so great and strange an occurrent, that the prediction of it was highly necessary, lest otherwise, when it came to pass, it should shake the faith of all who did believe on him; whereas now the accomplishment hereof was a notable confirmation of their faith, and an evidence that Christ was the true Messiah.