"Water of affliction"

1. 1 Kgs. 22: 27
   27 And say, Thus saith the king, Put this fellow in the prison, and feed him with bread of affliction and with water of affliction, until I come in peace.
2. 2 Chr. 18: 26
   26 And say, Thus saith the king, Put this fellow in the prison, and feed him with bread of affliction and with water of affliction, until I return in peace.
3. Isa. 30: 20
   20 And though the Lord give you the bread of adversity, and the water of affliction, yet shall not thy teachers be removed into a corner any more, but thine eyes shall see thy teachers: