G-d did not say in the Bible that "Jesus died and rose again".
The authors in the NT said that, as it was believed to be the case.
..by saying that he didn't die while on the cross, and so didn't have to "rise again", doesn't negate the whole of Jesus' teachings.
Christianity became a religion that revolved around him "dying on a cross". Jesus didn't start a new religion based on that core belief. He attended the temple in Jerusalem, and was the promised messiah.
Yes the followers of Jesus said what happened.
The OT gives prophecy of what would happen, eg Isa 53, Psalm 22.
(the servant of Isa 53 died and was buried and was a sin offering, as per temple sin offerings, and rose to see children, those who believe in Him and receive His life)
Isa 53:8 By oppression and judgment he was taken away.
Yet who of his generation protested?
For he was cut off from the land of the living;
for the transgression of my people he was punished.
9 He was assigned a grave with the wicked,
and with the rich in his death,
though he had done no violence,
nor was any deceit in his mouth.
10 Yet it was the Lord’s will to crush him and cause him to suffer,
and though the Lord makes his life an offering for sin,
he will see his offspring and prolong his days,
and the will of the Lord will prosper in his hand.
11 After he has suffered,
he will see the light of life and be satisfied;
by his knowledge my righteous servant will justify many,
and he will bear their iniquities.
The one who called God His Father and who is made firstborn, higher than the kings of the earth was rejected by the Jews and killed. (So I believe Ps 89:24-29, 38-45)
God prophesied the death and resurrection of the Messiah and what happened as recorded in the New Testament is witness to that.
John the Baptists said of Jesus that He is the lamb of God who takes away the sins of the world. (lamb as in a lamb offered for sin at the Temple)
Jesus prophesied His own death and resurrection and even told us why.
Matt26:26 Now as they were eating, Jesus took bread, and after blessing it broke it and gave it to the disciples, and said, “Take, eat; this is my body.” 27 And he took a cup, and when he had given thanks he gave it to them, saying, “Drink of it, all of you, 28 for this is my blood of the covenant, which is poured out for many for the forgiveness of sins.
The whole bible witnesses to the truth of the death and resurrection of Jesus and you say that God did not say in the Bible that Jesus died and rose again.
How many people said that Jesus did not die on the cross and rise again? Did God say that? If you believe the words of one man, yes, God said that.
Christianity became a religion that revolved around the belief in the death and resurrection because that is what happened and is central to the gospel message of forgiveness through faith in Jesus.
Jesus even came to the disciples after the resurrection.