No there is I think nothing in the Bible about suicide, I think, (could be wrong). But it does forbid killing. "Thou shalt not kill." Which the church has always interpreted as including, 'self murder', which was always seen as the worst sin, which barred a suicide from heaven forever. Almost certainly that is because the church foresaw the problem you raised long ago, and thought that too many people rushing to heaven, could perhaps be bad for the takings on Sunday.

However in the Islamic faith, there do seem to be a few suicide bombers etc. who want to get at those virgins. Though that is, perhaps, a bad reading of the promises made about those who 'fight' for the faith, since it is questionable if suicide bombing is really fighting. So it is worth pointing out, that the prophet and the first caliphs, were warriors who fought face to face with soldiers armed almost exactly like them with swords and shields, and that is no doubt the kind of fighting referred to in their writings. Maybe though, since logic and evidence don't mean much to the religious, the difference between that sort of fighting and bombing unarmed civilians and children, will be lost on the fundamentalists.

And if that all seems pedantic, it is not, I am being sarcastic too.