The book of Acts gives us several examples of people who used reason and argumentation to persuade people of the truth of Christianity. For example, Acts 19:8 tells us that “Paul entered the synagogue and spoke boldly there for three months, arguing persuasively about the kingdom of God.” Acts 18:27-28 tells us that “When Apollos wanted to go to Achaia, the brothers and sisters encouraged him and wrote to the disciples there to welcome him. When he arrived, he was a great help to those who by grace had believed. For he vigorously refuted his Jewish opponents in public debate, proving from the Scriptures that Jesus was the Messiah.” — Jonathan McLatchie (from, Does the Bible command its readers to think and use reason?)