Bible Verses About Miracles: Should produce faith

¶ Now when he was in Jerusalem at the passover, in the feast day, many believed in his name, when they saw the miracles which he did.

And many other signs truly did Jesus in the presence of his disciples, which are not written in this book:

But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.