'Eternal' in the Bible

But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation:

For whoever wishes to save his life [in this world] will [eventually] lose it [through death], but whoever loses his life [in this world] for My sake and the gospel’s will save it [from the consequences of sin and separation from God].

For what does it benefit a man to gain the whole world [with all its pleasures], and forfeit his soul?

For what will a man give in exchange for his soul and eternal life [in God’s kingdom]?

And if your hand is a cause of trouble to you, let it be cut off; it is better for you to go into life with one hand than to have two hands and go into hell, into the eternal fire.

And when he was gone forth into the way, there came one running, and kneeled to him, and asked him, Good Master, what shall I do that I may inherit eternal life?

But he shall receive an hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life.

He who has believed [in Me] and has been baptized will be saved [from the penalty of God’s wrath and judgment]; but he who has not believed will be condemned.

And they went out and preached everywhere, while the Lord worked with them, and confirmed the word by the signs that followed.][And they promptly reported all these instructions to Peter and his companions. And after that, Jesus Himself sent out through them from east to west the sacred and imperishable proclamation of eternal salvation.]