How do we know conversion is essential for salvation?

Conversion is fundamentally about turning away from reliance on oneself and trusting fully in Jesus Christ. In the sermon, the preacher asserts that every soul must come to see their natural condition and look to Christ for redemption. This aligns with Acts 4:12, which states that 'there is no other name under heaven given among men, whereby we must be saved.' It highlights that without this conversion, one remains outside the hope of salvation, emphasizing the urgency and necessity of embracing this transformation.