Spontaneity is a characteristic element of Pentecostal worship. This was especially true in the movement's earlier history, when anyone could initiate a song, chorus, or spiritual gift. Even as Pentecostalism has become more organized and formal, with more control exerted over services, the concept of spontaneity has retained an important place within the movement and continues to inform stereotypical imagery, such as the derogatory "holy roller". The phrase "Quench not the Spirit", derived from 1 Thessalonians 5:19, is used commonly and captures the thought behind Pentecostal spontaneity.