John 4:48 So Jesus said to him, “Unless you see signs and wonders you will not believe."

John 5:24 "Truly, truly, I say to you, whoever hears my word and believes him who sent me has eternal life. He does not come into judgment, but has passed from death to life."

John 6:47 "Truly, truly, I say to you, whoever believes has eternal life."

John 1:12 "But to all who did receive him, who believed in his name, he gave the right to become children of God."