What is the meaning of Matthew 23:15?

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

Woe to you, scribes and Pharisees, you hypocrites! You traverse land and sea to win a single convert, and when he becomes one, you make him twice as much a son of hell as you are.

Berean Standard Bible (BSB)

Woe to you, scribes and Pharisees, hypocrites! For you travel around by sea and land to make one proselyte; and when he becomes one, you make him twice as much of a son of Gehenna as yourselves.

World English Bible (WEB)

Woe{G3759} unto you{G5213}, scribes{G1122} and{G2532} Pharisees{G5330}, hypocrites{G5273}! for{G3754} ye compass{G4013}{(G5719)} sea{G2281} and{G2532} land{G3584} to make{G4160}{(G5658)} one{G1520} proselyte{G4339}, and{G2532} when{G3752} he is made{G1096}{(G5638)}, ye make{G4160}{(G5719)} him{G846} twofold more{G1362} the child{G5207} of hell{G1067} than yourselves{G5216}.

Strong's King James

(15) Woe to you, Torah-scribes and Pharisees! Hypocrites! Because you go around on sea and land to make one convert and when it happens, you make him twice a son of Gei-Hinnom as you are.

The F.O.G*

[15] "What sorrow awaits you teachers of religious law and Pharisees – you hypocrites! You cross land and sea to make one convert, and then you turn that person into twice the child of hell you yourselves are!"

The F.O.G Paraphrase

‘Woe to you, Scribes and Pharisees, hypocrites! because ye go round the sea and the dry land to make one proselyte, and whenever it may happen—ye make him a son of gehenna twofold more than yourselves.

Young's Literal Translation