John said that the marriage of Herod was not lawful (Mk 6:18-6:18)

“John had been telling

Herod.

‘It is not lawful

For you

To have

Your brother’s wife.’”

 

ἔλεγεν γὰρ ὁ Ἰωάνης τῷ Ἡρῴδῃ ὅτι Οὐκ ἔξεστίν σοι ἔχειν τὴν γυναῖκα τοῦ ἀδελφοῦ σου.

 

This mention of John the Baptist telling King Herod that his marriage was not lawful can be found in Matthew, chapter 14:4, and here.  John had called out Herod for his marriage with Herodias, his brother’s recently divorced wife.  Mark said that John had told Herod (ἔλεγεν γὰρ ὁ Ἰωάνης τῷ Ἡρῴδῃ) that It was not lawful for him to have his brother’s wife as his wife (ὅτι Οὐκ ἔξεστίν σοι ἔχειν τὴν γυναῖκα τοῦ ἀδελφοῦ σου).  John the Baptist was not ambiguous and not afraid to express his beliefs.