Who was Thomas in the Bible? In the Bible, Thomas is known as Thomas the Apostle, one of the twelve disciples of Jesus. He's also known as Didymus, which is Greek for "twin," both in Aramaic and Greek, the name means "twin". He's famously called "Doubting Thomas" due to his initial skepticism about Jesus' resurrection, but ultimately, he confessed his faith after seeing the wounds of Jesus. Key points about Thomas in the Bible: Apostle: Thomas was one of the twelve apostles chosen by Jesus to fo