What does the Bible say about worshiping God in spirit?

According to Scripture, true worship is not about external acts but originates from within the heart transformed by the Spirit of God. In John 4:23, Jesus states that true worshipers will worship the Father in spirit and truth. This means that genuine worship is a response of the heart, created anew by God, rather than mere ritualistic practices. In Philippians 3:3, Paul emphasizes that the true circumcision, or those accepted by God, worship in the Spirit of God, which indicates that authentic worship is rooted in a relationship fostered by the Holy Spirit and not by human effort or outward compliance with the law.