How do we know the legal union with Christ is true?
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The legal union with Christ is founded in Scripture, affirming that Christ is the surety of a better covenant, ensuring salvation for His people.
The doctrine of legal union with Christ is substantiated in the New Testament, particularly in Hebrews 7:22, where it states that Jesus is the surety of a better covenant. This better covenant refers to the new and everlasting covenant established by Jesus before the foundation of the world. The term 'surety' indicates that Christ stands in a legal representation for each believer, fulfilling all the demands of God’s law on their behalf. This means that when He pays the debt of sin, believers are considered to have fulfilled the law through Him. This union assures us that we are legally declared righteous in God’s sight because of Christ’s work.
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