'Eternity' in the Bible

but whosoever shall speak injuriously against the Holy Spirit, to eternity has no forgiveness; but lies under the guilt of an everlasting sin;

But whoever drinks of this water which I will give to him will never be thirsty for eternity, but the water which I will give to him will become in him a well of water springing up to eternal life."

The Jews said to Him, “Now we know that You have a demon [and are under its power]. Abraham died, and also the prophets; yet You say, ‘If anyone keeps My word, he will never, ever taste of death.’

And I give them eternal life, and they will never, ever [by any means] perish; and no one will ever snatch them out of My hand.

known from eternity.

who exchanged the truth of God with a lie, and worshiped and served the creation rather than the Creator, who is blessed for eternity. Amen.

For from him and through him and to him [are] all [things]. To him [be] glory for eternity! Amen.

For to me, to live is Christ [He is my source of joy, my reason to live] and to die is gain [for I will be with Him in eternity].

Then we who are alive and remain [on the earth] will simultaneously be caught up (raptured) together with them [the resurrected ones] in the clouds to meet the Lord in the air, and so we will always be with the Lord!

Now to the King of the ages [eternal], immortal, invisible, the only God, be honor and glory forever and ever. Amen.

who has saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace which was granted us in Christ Jesus from all eternity,

Therefore He is able also to save forever (completely, perfectly, for eternity) those who come to God through Him, since He always lives to intercede and intervene on their behalf [with God].

but the word of the Lord abides for eternity. But this is the word which in the glad tidings is preached to you.

But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory both now and to the day of eternity. Amen.

And the world is passing, and its lust, but he that does the will of God abides for eternity.

for the truth's sake which abides in us and shall be with us to eternity.

raging waves of the sea, foaming out their own shames; wandering stars, to whom has been reserved the gloom of darkness for eternity.

to the only God, our Savior, through Jesus the Messiah, our Lord, be glory, majesty, power, and authority before all time and for all eternity! Amen.

and the Ever-living One [living in and beyond all time and space]. I died, but see, I am alive forevermore, and I have the keys of [absolute control and victory over] death and of Hades (the realm of the dead).