“‘Teacher!

Moses wrote

For us

That if a man’s brother

Dies,

Leaving a wife,

But no child,

The man shall

Marry the widow

And raise up children

For his brother.’”

Διδάσκαλε, Μωϋσῆς ἔγραψεν ἡμῖν ὅτι ἐάν τινος ἀδελφὸς ἀποθάνῃ καὶ καταλίπῃ γυναῖκα καὶ μὴ ἀφῇ τέκνον, ἵνα λάβῃ ὁ ἀδελφὸς αὐτοῦ τὴν γυναῖκα καὶ ἐξαναστήσῃ σπέρμα τῷ ἀδελφῷ αὐτοῦ.  

Matthew, chapter 22:24, and Luke, chapter 20:28, are almost word for word as here in Mark.  Mark said that these Sadducees addressed Jesus very respectfully as “Teacher (Διδάσκαλε).”  These Sadducees quoted a Mosaic text that Moses had written for them (Μωϋσῆς ἔγραψεν ἡμῖν), from Deuteronomy, chapter 25:5-10.  If a man’s brother should die (ὅτι ἐάν τινος ἀδελφὸς ἀποθάνῃ) leaving behind a wife (καὶ καταλίπῃ γυναῖκα) without any children (καὶ μὴ ἀφῇ τέκνον), his living brother should take his dead brother’s widow as his wife (ἵνα λάβῃ ὁ ἀδελφὸς αὐτοῦ τὴν γυναῖκα).  He would then raise up the descendant children or seeds for his brother (καὶ ἐξαναστήσῃ σπέρμα τῷ ἀδελφῷ αὐτοῦ).  This levirate law goes back as far as Tamar in Genesis, chapter 38:1-30, with the story of Judah’s 3 sons and Tamar, the original wife of Er.  The brother of the deceased was supposed to marry his brother’s widow if he had no sons.  The widow was not to marry outside her family.  It also assumes that the brother lived close by or in the same house as his brother.  There was no indication of whether the brother was married or not, but this seems to assume a younger brother.  This was an attempt to prolong the heritage and name of a person, which was common in ancient times.  The punishment for the brother’s refusal was an insult rather than any physical punishment.