Some examples:
Acts 19:8–10 “Paul entered the synagogue and spoke boldly there for three months, arguing persuasively about the kingdom of God. But some of them became obstinate; they refused to believe and publicly maligned the Way. So Paul left them. He took the disciples with him and had discussions daily in the lecture hall of Tyrannus. This went on for two years so that all the Jews and Greeks who lived in the province of Asia heard the word of the Lord.”
^^
“But in your hearts revere Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have." 1 Peter 3
2 Timothy 2:24–26 “And the Lord’s servant must not be quarrelsome but must be kind to everyone, able to teach, not resentful. Opponents must be gently instructed, in the hope that God will grant them repentance leading them to a knowledge of the truth, and that they will come to their senses and escape from the trap of the devil, who has taken them captive to do his will.”
Jude 22 “Be merciful to those who doubt…”
Luke 7:19–22 “When the men came to Jesus, they said, “John the Baptist sent us to you to ask, ‘Are you the one who is to come, or should we expect someone else?’” At that very time, Jesus cured many who had diseases, sicknesses, and evil spirits, and gave sight to many who were blind. So he replied to the messengers, “Go back and report to John what you have seen and heard: The blind receive sight, the lame walk, those who have leprosy are cleansed, the deaf hear, the dead are raised, and the good news is proclaimed to the poor. Blessed is anyone who does not stumble on account of me.”