The Regulative Principle of Worship • The sermon defines the "regulative principle of worship" as the practice of worshipping God strictly according to His prescribed Word, rather than through human tradition or "seeker-friendly" tactics. • Acts 2:42 serves as the foundational text, illustrating an orderly, spirit-led pattern for the early church that avoids chaos . • The speaker argues that this passage is prescriptive, not merely descriptive, because it mirrors the divine pattern of establishment seen in Old Testament Israel . Core Elements of Worship • The four definitive elements of worship identified are the apostles' teaching, the fellowship (koinonia), the breaking of the bread, and the prayers . • "The apostles' teaching" is prioritized as the central, public, and sufficient authority for the church, emphasizing sola scriptura. • "The fellowship" (koinonia) is interpreted as a specific, tangible act of worship involving financial support and material sharing, rather than a general social concept . • "The breaking of the bread" refers specifically to the Lord's Supper, while "the prayers" denotes formal, corporate prayer led by men in the congregation.