How do we know the calling to be fishers of men is true?

Jesus' command in Mark 1:17 and similar passages in Matthew and Luke serve as authoritative Scripture highlighting this truth. The historical fulfillment of this calling is evident in the actions of the apostles after the resurrection, as they spread the Gospel throughout the world. The Great Commission in Matthew 28:19-20 further reinforces this truth, commanding Jesus’ followers to go and make disciples of all nations. This calling is not limited to the apostles but extends to all who are part of the church, emphasizing that every believer shares the responsibility of spreading the Gospel.