What is the meaning of Philippians 4:12?

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

I know how to live humbly, and I know how to abound. I am accustomed to any and every situation—to being filled and being hungry, to having plenty and having need.

Berean Standard Bible (BSB)

I know how to be humbled, and I know also how to abound. In everything and in all things I have learned the secret both to be filled and to be hungry, both to abound and to be in need.

World English Bible (WEB)

{G1161} I know{G1492}{(G5758)} both how to be abased{G5013}{(G5745)}, and{G2532} I know{G1492}{(G5758)} how to abound{G4052}{(G5721)}: every where{G1722}{G3956} and{G2532} in{G1722} all things{G3956} I am instructed{G3453}{(G5769)} both{G2532} to be full{G5526}{(G5745)} and{G2532} to be hungry{G3983}{(G5721)}, both{G2532} to abound{G4052}{(G5721)} and{G2532} to suffer need{G5302}{(G5745)}.

Strong's King James

(12) I know humility and I also know surplus! In any and everything, I've learned the secret, being filled and being hungry, both surplus and lack,

The F.O.G*

[12] I know what it's like to have nothing, and I know what it's like to have plenty. I've learned the secret of being satisfied in every situation - whether well-fed or hungry, living in plenty or in want.

The F.O.G Paraphrase

I have known both to be abased, and I have known to abound; in everything and in all things I have been initiated, both to be full and to be hungry, both to abound and to be in want.

Young's Literal Translation