It doesn’t always have to be Hellfire and Damnation coming from the pulpit — BUT, there should be at least some of that. Will you offend people and perhaps drive them off?
One of the most common complaints we run into when trying to tell people about their need for salvation is that they don’t like or trust religion. You know what? Neither did Yeshua. He stood in complete contrast and opposition to the “religion” of His day.