'Eternal' in the Bible

But whoever blasphemes against the Holy Spirit does not have forgiveness {forever}, but is guilty of [an] eternal sin"--

And [as] he was setting out on [his] way, one [individual] ran up and knelt down before him [and] asked him, "Good Teacher, what must I do so that I will inherit eternal life?"

{who will not} receive a hundred times as much now in this time--houses and brothers and sisters and mothers and children and fields, together with persecutions--and in the age to come, eternal life.