Spiritual gifts can be used to either help strengthen the faith of other believers or give them motivation but, when spiritual gifts are used in a bad way things will fall into chaos in the church which was what was happening when people were speaking in tongues because there was no interpreters so people did not understand what they were saying. So everything done in worship services must be beneficial to the worshipers not just you. The principal touches every aspect-singing, preaching, and exercise of spiritual gifts. Those contributing to the service must have love as their chief motivation, giving useful words or help that will strengthen the faith of other believers.
1 CORINTHIANS 14 / BLOG
