How do we know Christ's apostleship is true?

Christ's apostleship is validated through His unique relationship with the Father, as He states in John 8:16 that He is not alone but sent by God. This commission is marked by His fulfillment of Old Testament prophecies and His miraculous works, which testify to His divine nature and mission. Throughout His ministry, He performed wonders, preached the Gospel, and bore witness to ultimate truth (John 18:37), demonstrating that His role as Apostle was not just a title but a reality grounded in His identity as the Son of God. His authority surpasses that of his followers, affirming His position as the chief Apostle.