|Sometimes we may not find peace that the ones we love have eternal life. I know from my experience their have been many who have died, who in our eyes deserve not death, yet have received condemnation. The truth is that we do deserve death (eternal). As this whole passage explains, "this is a hard teaching" because if unbelief exists, than condemnation is theirs. Is this going as far to say that those who are mentally unstable cannot be saved? Absolutely not, for if the father enables them to believe (john 6:44) than they will be saved. For Jesus, came to save such men.