The apostle who famously doubted Jesus' resurrection until he saw the wounds in His hands and side was Thomas.
Thomas, also known as "Doubting Thomas," was one of the twelve apostles chosen by Jesus. After Jesus was crucified, the other apostles told Thomas that they had seen Jesus alive. However, Thomas found it hard to believe their account and said, "Unless I see the nail marks in his hands and put my finger where the nails were, and put my hand into his side, I will not believe."
It was only when Jesus appeared before Thomas and invited him to touch His wounds that Thomas believed. Jesus told Thomas, "Put your finger here; see my hands. Reach out your hand and put it into my side. Stop doubting and believe."
This incident highlights Thomas' doubting nature and the need for physical evidence to believe in Jesus' resurrection. However, Jesus also gently rebuked Thomas, saying, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed."
Thomas' doubt eventually transformed into unwavering faith. After seeing Jesus and His wounds, Thomas exclaimed, "My Lord and my God!" This encounter reinforced the reality of Jesus' resurrection and strengthened Thomas' belief in Him.