Genesis 18:19-21

Young's Literal Translation

¹⁹ for I have known him, that he commandeth his children, and his house after him (and they have kept the way of Jehovah), to do righteousness and judgment, that Jehovah may bring on Abraham that which He hath spoken concerning him.'

²⁰ And Jehovah saith, `The cry of Sodom and Gomorrah -- because great; and their sin -- because exceeding grievous:

²¹ I go down now, and see whether according to its cry which is coming unto Me they have done completely -- and if not -- I know;'