This was so that the word of Jesus would be fulfilled, which he spoke signifying what kind of death he would die
Other versions
King James Version
That the saying of Jesus might be fulfilled, which he spake, signifying what death he should die.English Standard Version
This was to fulfill the word that Jesus had spoken to show by what kind of death he was going to die.New International Version
"But we have no right to execute anyone," the Jews objected. This happened so that the words Jesus had spoken indicating the kind of death he was going to die would be fulfilled.