A sonnet by John Milton:

When I consider how my light is spent
Ere half my days in this dark world and wide,
And that one Talent which is death to hide,
Lodg'd with me, though my Soul more bent

To serve therewith my Maker, and present

My true account, lest he returning chide.
"Doth God exact day-labor, light denied?"
I fondly ask. But Patience, to prevent

That murmur, soon replies, "God doth not need

Either man's work or his own gifts; who best
Bear His mild yoke, they serve Him best. His state

Is kingly, thousands at His bidding speed,

And post o'er land and ocean without rest:
They also serve who only stand and wait.