'Heaven' in the Bible

unto an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you,

To whom it was revealed, that not unto themselves, but unto you, did they minister these things, which now have been announced unto you through them that preached the gospel unto you by the Holy Spirit sent forth from heaven; which things angel desire to look into.

who is one the right hand of God, having gone into heaven; angels and authorities and powers being made subject unto him.