Rejecting Jesus can result in dying in one's sin.

John 8:21–24

²¹Then 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.

²²Then said the Jews, Will he kill himself? because he saith, Whither I go, ye cannot come.

²³And he said unto them, Ye are from beneath; I am from above: ye are of this world; I am not of this world.

²⁴I 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.