Justin Martyr

Then further concerning Him, that He alone is powerful, both to institute judgment on the deeds performed in life, and on the ignorance of the Deity [displayed by men], I can adduce witnesses from your own ranks; and first Sophocles, who speaks as follows...

Now we have understood that the expression used among these words, 'According to the days of the tree [of life] shall be the days of my people; the works of their toil shall abound' obscurely predicts a thousand years. For as Adam was told that in the day he ate of the tree he would die, we know that he did not complete a thousand years. We have perceived, moreover, that the expression, 'The day of the Lord is as a thousand years,' is connected with this subject.