“The Lord spoke to Joshua: “Today I will begin to exalt you in the sight of all Israel, so they will know that I will be with you just as I was with Moses.”
Joshua 3:7 HCSB
The Lord was leading the people, first through Moses, and now through Joshua, the signs Moses performed were essentially there to establish that he was doing the Lord’s work. Fast forward several hundred, maybe even a thousand, years and you have the Jewish leaders asking for a sign from Jesus, who was indignant to give them one. Perhaps this is because He was performing great signs and miracles, but also (and I think this is really the case), He required them, and now us, to follow based off of faith. The difference between the two is that Joshua and Moses were men. Jesus is the Son of God.