Diagonguzo describes voiced disapproval of someone’s welcome or association with sinful people.

The attested use is a continuing, spoken objection to a person's association with sinful people: the same form introduces what observers say in both Luke 15:2 and Luke 19:7.

1. Voiced objection to association with sinful people · dominant

   In Luke 15:2, διεγόγγυζον introduces the Pharisees and scribes speaking against a man who welcomes and eats with sinful people; the APB renders the clause “were murmuring, saying.” In Luke 19:7, the same imperfect active indicative plural form introduces the crowd's objection that he entered to lodge with a sinful man; the APB again renders “were murmuring, saying.”

   Luke 15:2Luke 19:7

In the Anselm Project Bible: Across Luke 15:2 and Luke 19:7, the APB presents the form as “were murmuring, saying,” followed by the content of the objection. The verse is read as a whole, but both clauses portray voiced complaint.