1The Pharisees and Sadducees came, and testing him, asked him to show them a sign from heaven. 2But he answered them, “When it is evening, you say, ‘It will be fair weather, for the sky is red.’ 3In the morning, ‘It will be foul weather today, for the sky is red and threatening.’ Hypocrites! You know how to discern the appearance of the sky, but you can’t discern the signs of the times! 4An evil and adulterous generation seeks after a sign, and there will be no sign given to it, except the sign of the prophet Jonah.”
He left them and departed. 5The disciples came to the other side and had forgotten to take bread. 6Jesus said to them, “Take heed and beware of the yeast of the Pharisees and Sadducees.”
7They reasoned among themselves, saying, “We brought no bread.”
8Jesus, perceiving it, said, “Why do you reason among yourselves, you of little faith, because you have brought no bread? 9Don’t you yet perceive or remember the five loaves for the five thousand, and how many baskets you took up, 10or the seven loaves for the four thousand, and how many baskets you took up? 11How is it that you don’t perceive that I didn’t speak to you concerning bread? But beware of the yeast of the Pharisees and Sadducees.”
12Then they understood that he didn’t tell them to beware of the yeast of bread, but of the teaching of the Pharisees and Sadducees.
13Now when Jesus came into the parts of Caesarea Philippi, he asked his disciples, saying, “Who do men say that I, the Son of Man, am?”
14They said, “Some say John the Baptizer, some, Elijah, and others, Jeremiah or one of the prophets.”
15He said to them, “But who do you say that I am?”
16Simon Peter answered, “You are the Christ, the Son of the living God.”
17Jesus answered him, “Blessed are you, Simon Bar Jonah, for flesh and blood has not revealed this to you, but my Father who is in heaven. 18I also tell you that you are Peter, and on this rock I will build my assembly, and the gates of Hades will not prevail against it. 19I will give to you the keys of the Kingdom of Heaven, and whatever you bind on earth will have been bound in heaven; and whatever you release on earth will have been released in heaven.” 20Then he commanded the disciples that they should tell no one that he was Jesus the Christ.
21From that time, Jesus began to show his disciples that he must go to Jerusalem and suffer many things from the elders, chief priests, and scribes, and be killed, and the third day be raised up.
22Peter took him aside and began to rebuke him, saying, “Far be it from you, Lord! This will never be done to you.”
23But he turned and said to Peter, “Get behind me, Satan! You are a stumbling block to me, for you are not setting your mind on the things of God, but on the things of men.”
24Then Jesus said to his disciples, “If anyone desires to come after me, let him deny himself, take up his cross, and follow me. 25For whoever desires to save his life will lose it, and whoever will lose his life for my sake will find it. 26For what will it profit a man if he gains the whole world and forfeits his life? Or what will a man give in exchange for his life? 27For the Son of Man will come in the glory of his Father with his angels, and then he will render to everyone according to his deeds. 28Most certainly I tell you, there are some standing here who will in no way taste of death until they see the Son of Man coming in his Kingdom.”
The Jews were accustomed to God providing signs to validate the words of a prophet. Possibly the three most spectacular occurred for Moses, Joshua, and Elijah.
For Moses, Yahweh brought plagues on Egypt in the late 15th century B.C. to deliver His people from Egyptian bondage and punish Egypt, according to Exod 7-12, especially verse 7:3: "I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt."
In Israel's war with the five Amorite kings of Canaan, the warrior and leader Joshua asked for the sun to stand still (Josh 7:12-14, especially verse 12): 12 “Sun, stand still on Gibeon! You, moon, stop in the valley of Aijalon!” 13 The sun stood still, and the moon stayed, until the nation had avenged themselves of their enemies. Isn’t this written in the book of Jashar? The sun stayed in the middle of the sky, and didn’t hurry to go down about a whole day. 14There was no day like that before it or after it, that Yahweh listened to the voice of a man; for Yahweh fought for Israel."
Last of all, Elijah sought to turn the people of Israel back to Yahweh, and challenged the Canaanite prophets of Jezebel to a contest, in which confirmed His prophet: and the fire that came from heaven because of the prayer of Elijah at Mt. Carmel (1 Kgs 18:36-39, especially verse 38: (36 At the time of the evening offering, Elijah the prophet came near and said, “Yahweh, the God of Abraham, of Isaac, and of Israel, let it be known today that you are God in Israel and that I am your servant, and that I have done all these things at your word. 37Hear me, Yahweh, hear me, that this people may know that you, Yahweh, are God, and that you have turned their heart back again.” 38Then Yahweh’s fire fell and consumed the burnt offering, the wood, the stones, and the dust; and it licked up the water that was in the trench. 39When all the people saw it, they fell on their faces. They said, “Yahweh, he is God! Yahweh, he is God!”).
Rather than satisfy their desire to seek miracles (as in John 6), these leaders of Israel would be given the greatest miracle of all, but one that they would not accept, the resurrection of Jesus.