'Forever' in the Bible

I am the living bread that came down from heaven. If anyone eats from this bread, he will live {forever}. And the bread that I will give for the life of the world is my flesh."

This is the bread that came down from heaven, not as the fathers ate and died. The one who eats this bread will live {forever}."

And the slave does not remain in the household {forever}; the son remains {forever}.

Truly, truly I say to you, if anyone keeps my word, he will never experience death {forever}."

The Jews said to him, "Now we know that you have a demon! Abraham and the prophets died, and you say, 'If anyone keeps my word, he will never taste death {forever}.'

And I give them eternal life, and they will never perish {forever}, and no one will seize them out of my hand.

and everyone who lives and believes in me will never die {forever}. Do you believe this?"

Then the crowd replied to him, "We have heard from the law that the Christ remains {forever}! And how do you say that the Son of Man must be lifted up? Who is this Son of Man?"

Peter said to him, "You will never wash my feet {forever}!" Jesus replied to him, "Unless I wash you, you do not have a share with me."

And I will ask the Father, and he will give you another Advocate, in order that he may be with you {forever}--