2 Kings 20:4,5

Afore Isaiah was gone out into the middle court Namely, of the king's palace. This is mentioned to show God's great readiness to hear the prayers of his children. Thus saith the God of thy father David

I am mindful of my promise made to David and his house, and will make it good in thy person. I have heard thy prayer, I have seen thy tears Prayer addressed to God with fervency and affection, is in a special manner pleasing to him; and when offered in faith, and for things which he, in his word, hath encouraged or authorized us to ask, shall be heard and answered. I will heal thee Diseases are God's servants; as they go where he sends them, so they come when he remands them, Matthew 8:8. On the third day thou shalt go up to the house of the Lord To give him solemn praise for his mercy. That he was able to go up so soon as the third day, showed the cure to be miraculous.