But as it is written, Eye has not seen, nor ear heard, neither have entered into the heart of man, the things which God has prepared for them that love him.
All Commentaries on 1 Corinthians 2:9 Go To 1 Corinthians 2
John Chrysostom
AD 407
Where are these words written? Either they are a paraphrase of some passage [such as Isaiah :], or they were written in some book which has now disappeared. In fact, many books were destroyed, and very few survived the first captivity intact, as we know from the documents which have survived. Not all the words of the prophets are extant, but Paul, who was learned in the law and was also speaking by the Spirit, would have known them all accurately.