Signs are meant to lead beyond wonder to faith in Jesus.

⁴⁸Then said Jesus unto him, Except ye see signs and wonders, ye will not believe.

²⁶Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled.

²⁷Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.

²⁸Then said they unto him, What shall we do, that we might work the works of God?

²⁹Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.

³⁷If I do not the works of my Father, believe me not.

³⁸But if I do, though ye believe not me, believe the works: that ye may know, and believe, that the Father is in me, and I in him.