Matthew 20:11

And when they received it. By those who laboured all the day in the vineyard, we are to understand such as have spent their whole lives in the service of God; but we are not thence to infer, that in the kingdom of heaven, where all receive their just reward, there is envy, discontent, or any complaint. By these words, Christ wishes to convey to our minds an idea of the immense honours that will be heaped upon all such as return with sincerity, though at the decline or even verge of life, to the Almighty. So exceeding great will be their reward, that it would excite envy, were it possible, even in the elect. (St. John Chrysostom, hom. lxv.)