How do we know Christ's claims about His deity are true?

The truth of Christ’s deity is bolstered by His miraculous works and the profound testimony found throughout the Scriptures. In John 5 and 6, He not only asserts His divine authority but also proves it through acts such as healing the impotent man and multiplying the loaves and fishes. As stated in Colossians 2:9, 'For in Him dwells all the fullness of the Godhead bodily.' His miracles served as signs that authenticate His claims about Himself, as people witnessed these acts and recognized Him as the Messiah, affirming the assertion that Jesus is God in the flesh.