We know Christ is all we need through the transformative experience of grace, where everything else becomes worthless compared to Him.
The understanding that Christ is all we need comes through a transformative experience provided by God's grace. As Paul states, everything else is counted as dung in comparison to the surpassing worth of knowing Christ Jesus our Lord (Philippians 3:8). When a believer attains to this knowledge, they come to realize that all religious trappings and self-righteousness are meaningless. Through the growth in grace, believers begin to see their need for Christ alone, driving them to depend solely on Him for life and righteousness, reinforcing the centrality of Christ in every aspect of their existence.
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