Are you familiar with the phrase ‘preaching to the choir’? This implies an attempt to convince someone of something they are already fully persuaded of. This should be an easy task. Everyone needs a supportive community, and the Biblical terms for this are edification and exhortation. Recognizing that, you should also recognize that this does not fulfill the Great Commission to preach the gospel to every creature. You should expect that those who are not familiar with the gospel message will be a harder sell, but you will be expanding the Kingdom of God on earth by doing so.
Related Resources:How to Hear God's Voice!