Why did God create the illusion of Jesus's crucifixion?

in the quran it says about Jesus' crucifixion: > And [for] their saying, "Indeed, we have killed the Messiah, Jesus, the son of Mary, the messenger of Allah ." And they did not kill him, nor did they crucify him; but [another] was made to resemble him to them. And indeed, those who differ over it are in doubt about it. They have no knowledge of it except the following of assumption. And they did not kill him, for certain. -- Qur'an 4:157 So it was made to appear Jesus was crucified.. but he was really not crucified. This confuses me because it seems as though God is purposely misleading people here. After Muhammad arrives people should now believe that Jesus was not crucified even though that is what was historically reported. Why did God do that and not just raise Jesus to himself without creating the illusion of crucifixion?