And this shall be a sign unto thee - That is, a sign, or proof that God would do what he had promised, and that Hezekiah would recover and be permitted to go again to the temple of the Lord Isa 38:22; 2 Kings 20:8. On the meaning of the word ‘sign,’ see Isaiah 7:11, note; Isaiah 7:14, note; compare the note at Isaiah 37:30. The promise was, that he should be permitted to go to the temple in three days 2 Kings 20:5.
Related Commentaries of Isaiah 38:7
Isaiah 38:7
7 And this shall be a sign unto thee from the LORD, that the LORD will do this thing that he hath spoken;