We know Christ is our substitute because the New Testament reveals His sacrifice as the only acceptable means for our justification and acceptance before God.
The concept of Christ as our substitute is rooted in the foundational truth of the Gospel. According to 2 Corinthians 5:21, 'For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.' This passage underscores that Christ took upon Himself the penalty for our sins and, in exchange, imputes His righteousness to us. The act of substituting self with Christ means relinquishing our efforts towards justification and fully embracing what He accomplished through His death and resurrection. This truth brings assurance, as believers can find rest and security in knowing that Christ fulfills every requirement on our behalf.
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