'Eternal' in the Bible

Now an expert in religious law stood up to test Jesus, saying, "Teacher, what must I do to inherit eternal life?"

And I tell you, make friends for yourselves by how you use worldly wealth, so that when it runs out you will be welcomed into the eternal homes.

Now a certain ruler asked him, "Good teacher, what must I do to inherit eternal life?"

who will not receive many times more in this age -- and in the age to come, eternal life."