Augustine of Hippo
Catena Aurea · Johannesevangelium 8
Then said Jesus again unto them, I go my way, and ye shall seek me, and shall die in your sins: whither I go, ye cannot come. Then said the Jews, Will he kill himself? because he saith, Whither I go, ye cannot come. And he said unto them, Ye are from beneath; I am from above: ye are of this world, I am not of this world. I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am he, ye shall die in your sins.
(Tract. xxxviii. 6) Our Lord expresses His meaning in the words, Ye are of this world, i. e. ye are sinners. All of us are born in sin; all have added by our actions to the sin in which we were born. The misery of the Jews then was, not that they had sin, but that they would die in their sin: I said therefore unto you, that ye shall die in your sin. Amongst the multitude, however, who heard our Lord, there were some who were about to believe; whereas this most severe sentence had gone forth against all: Ye shall die in your sin; to the destruction of all hope even in those who should hereafter believe. So His next words recall thelatter to hope: For if ye believe not that I am He, ye shall die in your sin: therefore if ye believe that I am He, ye shall not die in your sin.