Parresiazomai describes speaking boldly and openly when proclaiming a message or addressing others.

The attested use consistently concerns bold, open speech in proclamation or direct address: the speakers announce God’s message amid conflict, teach and reason in synagogues, testify concerning the word of grace, and address a king without concealment.

1. Bold, open proclamation or address · dominant

   The participial and finite forms mark speakers who state a message openly: in Acts 13:46 Paul and Barnabas declare that God’s word was to be spoken first to their hearers, and in Acts 14:3 they continue speaking in connection with the word of grace. In Acts 18:26 and Acts 19:8 the action occurs in the synagogue, while Acts 26:26 places it in direct speech to a king about matters said not to have been done in a corner. In 1 Thessalonians 2:2 the first-person aorist form occurs after mistreatment and amid much conflict as the speakers address the recipients with God’s gospel.

   Acts 13:46Acts 14:3Acts 18:26Acts 19:8Acts 26:261 Thessalonians 2:2

In the Anselm Project Bible: Across the occurrences, the APB regularly uses “spoke boldly,” “speaking boldly,” or “preached boldly.” These renderings confirm the verses’ presentation of forthright speech rather than supplying finer distinctions.