How do we know Christ's fullness is true?

We know Christ's fullness is true through various declarations in Scripture, especially Colossians 2:9, which affirms that all the fullness of the Godhead dwells in Christ bodily. This underscores the truth that Jesus is fully God and fully human. His divine nature ensures that He is the perfect mediator between God and man. Hence, when we trust in Him, we are recipients of His righteousness and mercy, fulfilling all that is required by God’s law for our salvation. The scriptural declarations provide solid foundations for our faith in Christ's completeness.