What is the meaning of Galatians 3:19?

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

Why then was the law given? It was added because of transgressions, until the arrival of the seed to whom the promise referred. It was administered through angels by a mediator.

Berean Standard Bible (BSB)

What then is the law? It was added because of transgressions, until the seed should come to whom the promise has been made. It was ordained through angels by the hand of a mediator.

World English Bible (WEB)

Wherefore{G5101} then{G3767} serveth the law{G3551}? It was added{G4369}{(G5681)} because of{G5484} transgressions{G3847}, till{G891}{G3739} the seed{G4690} should come{G2064}{(G5632)} to whom{G3739} the promise was made{G1861}{(G5766)}; and it was ordained{G1299}{(G5651)} by{G1223} angels{G32} in{G1722} the hand{G5495} of a mediator{G3316}.

Strong's King James

Why the Torah then? It was added on account of the crimes, having been determined because of messengers in the hand of a mediator. Until the Seed would arrive to whom the promise was made.

The F.O.G*

[19] So why was the law given? It was added because of transgressions until the promised Seed—the Messiah—would come. The law was established through angels by a mediator.

The F.O.G Paraphrase

Why, then, the law? on account of the transgressions it was added, till the seed might come to which the promise hath been made, having been set in order through messengers in the hand of a mediator—

Young's Literal Translation