He offered himself To the Jewish Priests and Religious leaders who condemned him. Why do you think he’s called the Lamb of God? Lambs got sacrificed in his day!
But that’s not why he died. He didn’t take a bullet for his friend, he freely offered himself as a sacrifice for our sin. This is what saves us from unending death. That’s why the cross is important. His death was more similar to an Animal that is sacrificed by the local shaman then a soldier who gets killed fighting against terrorists.
The cross is important because Christ’s death was a Sacrifice…in a similar way to offering a live animal on an altar, or offering incense to a god. Its this sacrifice (his crucifixion) that saves us.
He KNEW he was going to be betrayed. That’s in Scripture. Yet he allowed himself to be handed over to fulfill what was written and to be a Sacrifice for our sins.