Therefore, Jesus said to him, "Unless you have seen signs and wonders, you do not believe.
Other versions
King James Version
Then said Jesus unto him, Except ye see signs and wonders, ye will not believe.English Standard Version
So Jesus said to him, "Unless you see signs and wonders you will not believe."New International Version
"Unless you people see miraculous signs and wonders," Jesus told him, "you will never believe."