How do we know Jesus Christ is truly God?

The doctrine of Christ's deity is foundational within historic Reformed theology, particularly emphasized through passages such as Colossians 2:9, which declares, 'For in Him dwelleth all the fullness of the Godhead bodily.' This indicates that Jesus is not merely a representation of God or a created being but fully encapsulates the divine essence. Additionally, John 1:1 states, 'In the beginning was the Word, and the Word was with God, and the Word was God,' further reinforcing that Christ is co-eternal and co-equal with the Father. Therefore, the divine nature of Christ is not only a doctrinal tenet but is also essential for understanding salvation as being through a perfect and eternal Savior.