Based on the presented quotes, it can be concluded that well-known historical and religious sources lack evidence that Jesus had a single-ovum twin brother who was later disposed of.

Dispelling the Twin Brother Myth

Based on the presented quotes, it can be concluded that well-known historical and religious sources lack evidence that Jesus had a single-ovum twin brother who was later disposed of. For instance, the Evangelists mention Jesus’ brothers by naming them James, Joseph, Simon, and Judas (for example, “The brothers of Jesus are mentioned by all four Evangelists…” – source: link txt). Furthermore, one of his disciples bore the nickname “Twin” – Thomas, also called the Twin (source: link txt) – but this nickname does not imply that he was Jesus’ biological twin. Other ancient testimonies, such as the mention by Josephus about James, the brother of Jesus (source: link txt), also do not include any reference to a biological twin, let alone one who was disposed of.

Thus, the available sources do not support the hypothesis that Jesus had a single-ovum twin brother who was subsequently eliminated.

Supporting citation(s):"All four Evangelists mention the brothers of Jesus in their narratives, but they only name them in the works of Matthew and Mark: 'Where did He get such wisdom and strength?

Isn’t He the carpenter's son? Doesn’t His mother call Him Mary, and aren’t His brothers James and Joseph, Simon, and Judas? And aren’t all His sisters among us?'” (source: link txt)

"His disciples said to Him: 'Rabbi!' ... Then Thomas, otherwise called the Twin, said to the disciples: 'Let us also go and die with Him.'" (source: link txt)