'Heaven' in the Bible

to an inheritance imperishable, undefiled and unfading, which has been reserved in Heaven for you,

To them it was revealed that they were serving not themselves but you, when they foretold the very things which have now been openly declared to you by those who, having been taught by the Holy Spirit which had been sent from Heaven, brought you the Good News. Angels long to stoop and look into these things.

who is at God's right hand, having gone into Heaven, angels and authorities and powers having been made subject to Him.