23Then, to show them that he must die in order to give eternal life to non-Jews like those Greeks, Jesus replied to them, “It is time for God to honor me, the one who came from heaven. That will happen when I die.
24Listen to this carefully: My life is like a seed MET. If someone does not plant a kernel of grain in the ground, it does not change. It remains only one seed. But if it changes after it is planted in the ground, it will grow and produce many seeds.
John 12
John 12:23-24