What does the Bible say about the works of the apostles?

In John 14:12, Jesus assures his apostles that those who believe in him will do the works he does and even greater ones, emphasizing the continued mission of the apostles after his departure. The apostles were given unique gifts that enabled them to perform miracles, signs, and wonders, which served to confirm their authority as messengers of the Gospel (Acts 2:43). Without the written New Testament during their time, these miraculous works were critical in demonstrating that God was with them and validating the truth of their message. Their works were not for self-glorification but rather aimed towards the furtherance of the Gospel and bringing others to faith.