What is the meaning of Luke 20:28?

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

“Teacher,” they said, “Moses wrote for us that if a man’s brother dies and leaves a wife but no children, the man is to marry his brother’s widow and raise up offspring for him.

Berean Standard Bible (BSB)

They asked him, “Teacher, Moses wrote to us that if a man’s brother dies having a wife, and he is childless, his brother should take the wife, and raise up children for his brother.

World English Bible (WEB)

Saying{G3004}{(G5723)}, Master{G1320}, Moses{G3475} wrote{G1125}{(G5656)} unto us{G2254}, If{G1437} any man's{G5100} brother{G80} die{G599}{(G5632)}, having{G2192}{(G5723)} a wife{G1135}, and{G2532} he{G3778} die{G599}{(G5632)} without children{G815}, that{G2443} his{G846} brother{G80} should take{G2983}{(G5632)} his wife{G1135}, and{G2532} raise up{G1817}{(G5661)} seed{G4690} unto his{G846} brother{G80}.

Strong's King James

(28) They questioned Him, saying, "Teacher, Moshe (Taken from Water) wrote for us, 'IF PERHAPS SOMEONE'S BROTHER DIES, HAVING A WIFE AND THIS ONE IS CHILDLESS, THEN HIS BROTHER SHOULD TAKE THE WIFE AND RAISE UP SEED TO HIS BROTHER.'

The F.O.G*

[28] "Teacher," they began, "Moses wrote that if a married man dies childless, his brother should marry the widow and have children to preserve the family line.

The F.O.G Paraphrase

saying, ‘Teacher, Moses wrote to us, If any one’s brother may die, having a wife, and he may die childless—that his brother may take the wife, and may raise up seed to his brother.

Young's Literal Translation