How do we know that Christ is our covering for sin?

The foundational belief in Christ as our covering is grounded in the doctrine of substitutionary atonement. As seen in Romans 8:1, there is no condemnation for those who are in Christ Jesus, affirming that His sacrifice satisfies God’s justice on our behalf. The imagery of Mary wiping Jesus' feet with her hair in John 12 demonstrates a heartfelt acknowledgment that He alone is our glory and covering. We have nothing to bring to God that can justify us; instead, we rest solely on His finished work on the cross, which is affirmed in 1 John 2:2, stating that He is the propitiation for our sins.