NET
5 and if he did not spare the ancient world, but did protect Noah, a herald of righteousness, along with seven others, when God brought a flood on an ungodly world,
Darby
5 and spared not [the] old world, but preserved Noe, [the] eighth, a preacher of righteousness, having brought in [the] flood upon [the] world of [the] ungodly;
KJV
5 And spared not the old world, but saved Noah the eighth [person], a preacher of righteousness, bringing in the flood upon the world of the ungodly;