'Discourse' in the Bible

I composed the first discourse, O Theophilus, concerning all things which Jesus began both to do and to teach,

They began calling Barnabas, Zeus [chief of the Greek gods], and Paul, Hermes [messenger of the Greek gods], since he took the lead in speaking.

Judas also and Silas, being themselves also prophets, through much discourse did exhort the brethren, and confirm,

And having passed through those parts, and having exhorted them with much discourse, he came to Greece.

And on the first of the week, the disciples having been gathered together to break bread, Paul was discoursing to them, about to depart on the morrow, he was also continuing the discourse till midnight,