I'm having a late lunch here, so thought would take this time and respond with some thoughts for your consideration.
mrpopdrinker, The verse you're looking for is, I believe, 1Corinthians 12:2 where Paul is talking about knowing a man who was caught up to the third heaven.
(as it is, most think it was himself he was referring to.)
The word 'heaven' definitely has different meanings, typically 3, as you said.
Ultima, based on what Paul speaks about in 1 Corinthians 12:2 regarding the 'third heaven', as well as different applications of the word 'heaven' throughout scripture, one can see that there are at least 3 meanings: Sky/Atmosphere, Outer Space, and God's dwelling place (and our future home).
I'll do my best to extrapolate: (KJV will be used)
Genesis 1:8 - ..."and God called the firmament heaven"... pretty clean statement, but as of this point in the creation process we have: Light, Darkness, lots of Water, and some sort of 'divider' if you will...water, divider, and more water.
[fun digression]
As an aside, this divider is considered by many to actually have been a support structure for the water above the earth and therefore solid. Physics tells us that when you compress a gas it can displace solids (think of gas shock absorbers). Strictly IMO, I think it would plausible to assume that this 'divider' between the water above and the water below the earth could have been a gas, so compressed that it could keep the two barriers seperate, as well as nicely explain some of the postdiluvian atomospheric, climatic and physical constraints...depending on the type of gas it was...say...Argon gas for instance???
Incidentally, Argon gas is part of the air we now breathe.
...Think about it; a thin, highly compressed concentrated layer of argon that we *didn't* breathe (yet), a more concentrated oxygen (et al) that we do breathe because of the heavily vegetated world, controlled temperature and greenhouse-like environment = no UV rays, longer life...
::and that my friends, was the first argon gas window...created by God himself, thus keeping the UV rays to a minimum and letting us all live to ripe old ages. There really *is* nothing new under the sun::
[/fun digression]
Now.. where was I?
In Genesis 1:9 he moves all the water under the argon gas window and it is "gathered together unto one place" and makes dry land appear...now critters have air to breathe and birds can fly, as it speaks of in verse ...wait...we'll get there;
So far we only have "the firmament" defined as "heaven". It's a work in progress. This could be likened to a wrapper of sorts. A general term. It gets more detailed what God does with it as you read on.
So then read on; in verse 14 we now introduce
another layer: a
'firmament of heaven'... or firmament of the already existing firmament if you will.
Into this expanse, God puts "the lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:" Enter stars and constellations! And in verse 16 and 17, he creates the moon and the sun and sets them in place. This is Space...the final frontier...the
firmament of heaven.
These few verses make it cool enough, but to make it even clearer, verse 20 really states the difference: God created "fowl that may fly above the earth in the
open firmament of heaven." This is correlating to verse 9, the 1st heaven, AKA our atmosphere.
So far, we have two layers of the word heaven in a general sense:
Firmament of heaven (outer space)
Open firmament of heaven (air space, where the birds fly)
Thus it is established in different degrees or levels:
Sky/Atmosphere = the "open firmament of heaven" or simply put; heaven, the heavens, and where we get 1st heaven.
Space = "firmament of heaven" or also referred to as heaven, the heavens, and where we get 2nd heaven.
God's Dwelling place = yet again called heaven, the heavens or the third heaven (according to Paul).
Isaiah however, tells us that God's dwelling place is located above the stars.
Summing up, the Bible usually just refers to it simply as 'heaven'. We have to take it contextually.
Biblical references:
( [ ] are my emphasis and for clarity only )
Reference to heaven as the sky:
Gen 7:23 - ..."the fowl of the [1st] heaven;" (we know birds are confined to our atmosphere)
Reference to heaven as outer space:
Isa 13:10 - For the stars of [the 2nd] heaven and the constellations thereof shall not give their light: the sun shall be darkened in his going forth, and the moon shall not cause her light to shine.
And God's dwelling place is heaven:
2Ch 6:30 - Then hear thou from [the 3rd] heaven thy dwelling place, and forgive, and render unto every man according unto all his ways, whose heart thou knowest; (for thou only knowest the hearts of the children of men
Ps 33:13 - The LORD looketh from heaven; he beholdeth all the sons of men.
And of course..."Our Father, which art in heaven..." from Matthew 6.
And in this passage, we see that God's dwelling place (heaven) is *not* actually in space, it is actually *above* the stars:
Isa 14:13 - For thou hast said in thine heart, I will ascend
into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north:
My deux one hundredths of a buck...