2 Kings 20:4-5

And it came to pass, before Isaiah was gone out into the middle part of the city, that the word of Jehovah came to him, saying, Turn back, and say to Hezekiah the prince of my people, Thus saith Jehovah, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will heal thee; on the third day thou shalt go up unto the house of Jehovah.