Luke 20:28

28 and put to him a sh'eilah: "Rabbi, Moshe wrote for us that if a man dies leaving a wife but no children, his brother must take the wife and have children to preserve the man's family line.

Luke 20:28 Meaning and Commentary

Luke 20:28

Saying, master, Moses wrote unto us
In ( Deuteronomy 25:5 ) where the substance of what follows is contained, though not in express words:

if any man's brother die, having a wife, and he die without
children, that his brother should take his wife, and raise up
seed unto his brother;
the meaning of which is, that if a man died without issue, and left a wife behind him, his next brother, if unmarried, was to marry his wife, and the first child born of her, was to be reckoned the deceased's, and to inherit his estate; (See Gill on Matthew 22:24).

Luke 20:28 In-Context

26 They were unable to trap him by anything he said publicly; indeed, amazed at his answer, they fell silent.
27 Some Tz'dukim, who say there is no resurrection, came to Yeshua
28 and put to him a sh'eilah: "Rabbi, Moshe wrote for us that if a man dies leaving a wife but no children, his brother must take the wife and have children to preserve the man's family line.
29 Now there were seven brothers. The first took a wife and died child less,
30 then the second
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.