Jn 17:17. Sanctify them through your truth: your word is truth.
Jn 20:30-31. 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 you might believe that Jesus is the Christ, the Son of God; and that believing you might have life through his name.
1Co 15:1-8. Moreover, brothers, I declare to you the gospel which I preached to you, which also you have received, and wherein you stand; By which also you are saved, if you keep in memory what I preached to you, unless you have believed in vain. For I delivered to you first of all that which I also received, how that Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures: And that he was seen of Cephas, then of the twelve: After that, he was seen of above five hundred brothers at once; of whom the greater part remain to this present, but some are fallen asleep. After that, he was seen of James; then of all the apostles. And last of all he was seen of me also, as of one born out of due time.