'Eternity' in the Bible

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.

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.

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 grow [spiritually mature] in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be glory (honor, majesty, splendor), both now and to the day of eternity. Amen.

to the only God our Savior, through Jesus Christ our Lord, be glory, majesty, dominion, and power, before all time and now and forever. 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).