John 6:26

6:26 Jesus replied, “I tell you the solemn truth, you are looking for me not because you saw miraculous signs, but because you ate all the loaves of bread you wanted.

John 6:30

6:30 So they said to him, “Then what miraculous sign will you perform, so that we may see it and believe you? What will you do?

John 6:40

6:40 For this is the will of my Father – for everyone who looks on the Son and believes in him to have eternal life, and I will raise him up at the last day.”

John 6:64

6:64 But there are some of you who do not believe.” (For Jesus had already known from the beginning who those were who did not believe, and who it was who would betray him.)