John 4:48; John 6:30; Exodus 4:1; Exodus 4:8; Exodus 7:9; Matthew 12:38

48 So Jesus said to him, kUnless you1 see signs and wonders you will not believe.

30 So they said to him, sThen what sign do you do, that we may see and believe you? What work do you perform?

Moses Given Powerful Signs

Then Moses answered, But behold, they will not believe me or listen to my voice, for they will say, The Lord did not appear to you.

If they will not believe you, God said, or listen to the first sign, they may believe the latter sign.

When Pharaoh says to you, vProve yourselves by working a miracle, then you shall say to Aaron, Take your staff and cast it down before Pharaoh, that it may become a serpent.

The Sign of Jonah

38 Then some of the scribes and Pharisees answered him, saying, Teacher, wwe wish to see a sign from you.