'Heaven' in the Bible

And I gave my heart to searching out in wisdom all things which are done under heaven: it is a hard thing which God has put on the sons of men to do.

Who is certain that the spirit of the sons of men goes up to heaven, or that the spirit of the beasts goes down to the earth?

Be not unwise with your mouth, and let not your heart be quick to say anything before God, because God is in heaven and you are on the earth--so let not the number of your words be great.