'Forever' in the Bible

I am the living bread which came down out of heaven. If anyone eats of this bread, he will live forever. Yes, the bread which I will give for the life of the world is my flesh."

This is the bread which came down out of heaven -- not as our fathers ate the manna, and died. He who eats this bread will live forever."

A bondservant doesn't live in the house forever. A son remains forever.

The multitude answered him, "We have heard out of the law that the Christ remains forever. How do you say, 'The Son of Man must be lifted up?' Who is this Son of Man?"

I will pray to the Father, and he will give you another Counselor, that he may be with you forever, --