How do we know that Jesus Christ is fully God?

Colossians 2:9 states that in Christ dwells all the fullness of the Godhead bodily. This means Jesus is fully God and fully man, embodying everything that God is. Throughout Scripture, we see that His divine nature was crucial for our redemption; without His divinity, His sacrifice would not be sufficient for our sins. The unity of Christ's two natures is also what allows Him to mediate between God and humanity, and His existence as the same yesterday, today, and forever serves as a firm foundation for our faith.