Paul frequently went to the synagogues to reason with the Jews explaining that Jesus was the Messiah. He testified of Jesus to both Jews and Gentiles. Several times he was rejected, even to the point of hostility.
One night Jesus spoke to Paul in a vision.
“And the Lord said to Paul one night in a vision, “Do not be afraid, but go on speaking and do not be silent,” Acts 18:9 ESV
The world will reject knowing Jesus. There will be opposition from those who have hardened their hearts. But we are to not be afraid to speak of Jesus to those around us. Because the Holy Spirit can soften the most hardened of hearts.
We are to follow Jesus’s directive as well! “Do not be afraid, but go on speaking and do not be silent,”