How do we know that Christ crucified is essential for worship?

Worship without the acknowledgment of Jesus Christ and Him crucified is deemed meaningless. Paul asserts that true worship must be in spirit and truth, which is only possible through the understanding of Christ's sacrificial death. When believers worship, they do so from the perspective of what Christ accomplished on the cross, recognizing Him as the Lamb of God who takes away the sin of the world. If our worship does not align with the gospel of God's free and sovereign grace, it risks becoming idolatrous, devoid of genuine reverence for God’s redemptive work.