Willful disbelief is the gravest sin. Testimony is more trustworthy than sight. If Jesus made personal appearances today, they would not answer the issue of His death. The size of church today proves the Holy Spirit works through the testimony. If personal appearances were necessary, He would have done it. Unbelief is inexcusible. Thomas's confession "My Lord and my God". Thomas became the missionary to India, and his life ended in martyrdom