Isaiah 38:4

“Then came the word of the Lord to Isaiah, &c.] Before he had got out into the middle court, (<122004>2 Kings 20:4): saying, as follows:”

“In Kg2 20:4, the quickness of God's answer to the prayer is marked, "afore Isaiah had gone out into the middle court, the word of the LORD came to him"; that is, before he had left Hezekiah, or at least when he had just left him, and Hezekiah was in the act of praying after having heard God's message by Isaiah (compare Isa 65:24; Psa 32:5; Dan 9:21).”

“Then came the word of the Lord - In the parallel place in 2 Kings 20:4, it is said, ‘And it came to pass, afore Isaiah was gone out into the middle court, that the word of the Lord came unto him.’ That is, the message of God name to Isaiah before he had left Hezekiah; or as soon as he had offered his prayer. This circumstance is omitted by Isaiah on the revision of his narrative which we have before us. But there is no contradiction. In this place it is implied that the message came to him soon, or immediately. return to 'Top of Page'”

“The prospect is now mercifully changed. "And it came to pass (K. Isaiah was not yet out of the inner city; keri סהצר, the forecourt, and) the word of Jehovah came to Isaiah (K. to him) as follows: Go (K. turn again) and say to Hizkiyahu (K. adds, to the prince of my people), Thus saith Jehovah, the God of David thine ancestor, I have heard thy prayer, seen thy tears; behold, I (K. will cure thee, on the third day thou shalt go up to the house of Jehovah) add (K. and I add) to thy days fifteen years. And I will deliver thee ad this city out of the hand of the king of Asshur, and will defend this city (K. for mine own sake and for David my servant's sake)." In the place of העיר (the city) the…”