Or; He did not call upon the labourers of the third hour for a complete task, but left to their own choice, how much they should work. For they might perform in the vineyard work equal to that of those who had wrought since the morning, if they chose to put forth upon their task an operative energy, such as had not yet been exerted.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).