What is the meaning of Hebrews 12:11?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

No discipline seems enjoyable at the time, but painful. Later on, however, it yields a harvest of righteousness and peace to those who have been trained by it.

Berean Standard Bible (BSB)

All chastening seems for the present to be not joyous but grievous; yet afterward it yields the peaceful fruit of righteousness to those who have been exercised thereby.

World English Bible (WEB)

Now{G1161} no{G3956}{G3756} chastening{G3809} for{G4314}{G3303} the present{G3918}{(G5752)} seemeth{G1380}{(G5719)} to be{G1511}{(G5750)} joyous{G5479}, but{G235} grievous{G3077}: nevertheless{G1161} afterward{G5305} it yieldeth{G591}{(G5719)} the peaceable{G1516} fruit{G2590} of righteousness{G1343} unto them which are exercised{G1128}{(G5772)} thereby{G1223}{G846}.

Strong's King James

(11) Now all discipline surely for the moment seems not to be joyful but rather grievous. And later those trained through it are paid back the peaceful fruit of righteousness.

The F.O.G*

[11] No discipline feels good in the moment – it stings and hurts. But later it yields the peaceful fruit of righteousness for those who have been trained by it.

The F.O.G Paraphrase

and all chastening for the present, indeed, doth not seem to be of joy, but of sorrow, yet afterward the peaceable fruit of righteousness to those exercised through it—it doth yield.

Young's Literal Translation