Leolaia: "So what is your interpretation of ch. 5? Or ch. 1 and 3 of Philippians?"
Chapter 5 of which book?
As for Philippians 1 and 3, I don’t have a problem w/ those verses.
I’m assuming you’re referring to:
(Philippians 3:20) As for us, our citizenship exists in the heavens, from which place also we are eagerly waiting for a savior, the Lord Jesus Christ,
Notice that a Christian’s “citizenship exists in the heavens” but that at the same time they expect “a savior, the Lord Jesus Christ” from this very place. If Christians were going to heaven, why do they expect Jesus “from” this “place”? That would be my question.
As for their citizenship “in the heavens”, notice what Ephesians 2:6 says:
(Ephesians 2:6) . . .and he raised us up [past tense] together and seated us [past tense] together in the heavenly places in union with Christ Jesus,
So, according to Paul, a Christian can be ‘raised up’ and “seated” in the “heavenly places” while being on earth. In a similar manner, I understand Philippians 3 to be talking about the same thing. A Christian can be in heaven in some sense, but in the same way that Paul was "in the heavenly places."
Hope that helps in understanding my position.