John 6:36-39

But as I told you, you have seen Me and still you do not believe. All that My Father gives Me will come to Me; and the one who comes to Me I will most certainly not cast out [I will never, never reject anyone who follows Me]. For I have come down from heaven, not to do My own will, but to do the will of Him who sent Me. This is the will of Him who sent Me, that of all that He has given Me I lose nothing, but that I [give new life and] raise it up at the last day.