Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX

Isaiah 8:14

And if thou shalt trust in him, he shall be to thee for a sanctuary; and ye shall not come against [him] as against a stumbling-stone, neither as against the falling of a rock: but the houses of Jacob are in a snare, and the dwellers in Jerusalem in a pit.

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