“Take up what is yours and go your way. It is my will to give to this last, even as to you.”
Then He pointed out that what He had done what in accordance with His own will, and that was to pay a living wage to everyone regardless of their misfortune at not finding work until late on (in fact a good Union principle). This stress on the owner's ‘will' is a further indication that he represents God Who does according to His own will, and we should ever be grateful for the fact that it is His will not to give us what we deserve, but to benefit even the least deserving.