Jerome

"Whatever you are able to do with your strength, do it. For there is neither doing, nor reckoning, nor knowledge, nor wisdom in the grave where you are going. "Do whatever you are presently able to do, and toil at it, because when you go down to the world of the dead there will be no place for repentance. Similar to this is what is taught by the Saviour: "work hard, while there is still day left; for night will come, when none is able to work" [Ioh. …

Commentary on Ecclesiastes ↗

Gregory the Dialogist

Since therefore the hours flee with their moments, act, dearest brothers, so that they may be retained in the reward of good work. Hear what the wise Solomon says: "Whatever your hand is able to do, work at it earnestly, for there will be neither work, nor knowledge, nor reason, nor wisdom in the underworld, to which you are hastening." Since therefore we do not know the time of coming death, and after death we cannot work, it remains that before death we seize the time that has been granted. …

Forty Gospel Homilies, Homily 13 ↗

Bonaventure

And because no other reward is to be expected, man ought to take from this as much as he can. Thus he says: "Whatever your hand is able to do, work at it earnestly," that is, while you have time, do not wait for the future. And therefore it is added: "For neither work," in things to be done; "nor reason," in things to be deliberated; "nor knowledge," in things to be known; "nor wisdom," in things to be loved, "shall be in the netherworld, to which you hasten": these things are not there, because, as is said in Job 10, "that land is …

Commentary on Ecclesiastes, Chapter 9 ↗