Isaiah 37:1

And it came to pass, when King Hezekiah heard it, namely, the report of his envoys, that he rent his clothes and covered himself with sackcloth, the depth of his grief and distress being shown by the fact that he wrapped himself in the vestments of mourning, and went into the house of the Lord, seeking help in the place in which God had promised to hear the prayers of His faithful people, 1 Kings 8:29.