SEV Biblia, Chapter 20:9
Y respondió Isaías: Esta señal tendrás del SEÑOR, de que hará el SEÑOR esto que ha dicho: ¿Avanzará la sombra diez grados, o retrocederá diez grados?
John Gill's Bible Commentary
Ver. 9. And Isaiah said, this sign shalt thou have of the Lord, that the Lord will do the thing that he hath spoken , etc.] Cure him of his disorder, so that he should be able to go to the temple on the third day: shall the shadow go forward ten degrees, or go back ten degrees ? that is, the shadow of the sun on a dial plate; it was left to his option to choose which he would, as the confirming sign of his recovery.
Matthew Henry Commentary
Verses 1-11 - Hezekiah was sick unto death, in the same year in which the king of Assyria besieged Jerusalem. A warning to prepare for death was brough to Hezekiah by Isaiah. Prayer is one of the best preparations for death, because by it we fetch in strength and grace from God, to enabl us to finish well. He wept sorely: some gather from hence that he wa unwilling to die; it is in the nature of man to dread the separation of soul and body. There was also something peculiar in Hezekiah's case; he was now in the midst of his usefulness. Let Hezekiah's prayer, see Is 38. interpret his tears; in that is nothing which is like his havin been under that fear of death, which has bondage or torment. Hezekiah' piety made his sick-bed easy. "O Lord, remember now;" he does not spea as if God needed to be put in mind of any thing by us; nor, as if the reward might be demanded as due; it is Christ's righteousness only tha is the purchase of mercy and grace. Hezekiah does not pray, Lord, spar me; but, Lord, remember me; whether I live or die, let me be thine. God always hears the prayers of the broken in heart, and will give health length of days, and temporal deliverances, as much and as long as it is truly good for them. Means were to be used for Hezekiah's recovery yet, considering to what a height the disease was come, and ho suddenly it was checked, the cure was miraculous. It is our duty, when sick, to use such means as are proper to help nature, else we do no trust God, but tempt him. For the confirmation of his faith, the shado of the sun was carried back, and the light was continued longer tha usual, in a miraculous manner. This work of wonder shows the power of God in heaven as well as on earth, the great notice he takes of prayer and the great favour he bears to his chosen.
Original Hebrew
ויאמר 559 ישׁעיהו 3470 זה 2088 לך האות 226 מאת 853 יהוה 3068 כי 3588 יעשׂה 6213 יהוה 3068 את 853 הדבר 1697 אשׁר 834 דבר 1696 הלך 1980 הצל 6738 עשׂר 6235 מעלות 4609 אם 518 ישׁוב 7725 עשׂר 6235 מעלות׃ 4609