Luke 23:50

βουλευτής. i.e. a member of the Sanhedrin, and therefore (as one of the 70 most distinguished members of the ruling classes) a person of great distinction. St Mark (Mark 15:43) calls him ‘an honourable councillor.’ Godet somewhat fancifully sees in St Mark’s description of him the Roman ideal; as in St Luke’s ‘good and just,’ the Greek ideal (καλὸς κἀγαθός); and in St Matthew’s ‘a rich man,’ the Jewish ideal.

ἀγαθὸς καὶ δίκαιος. The first word describes his moral character, the latter his strict religious life as an orthodox Jew. Romans 5:7. Mark calls him εὐσχήμων; Matthew πλούσιος.