All those that believe are temples of the Holy Spirit ... even those which Paul had to warn to avoid sexual immorality.
Believe what? The Mormons believe in Christ too; so do Gnostics and Jehova's Witnesses. There are many beliefs. I am sure +Paul had only one belief in mind: one that is Catholic in nature and Orthodox in faith.
I, of course, would say Apostolic.
And not all who say or think or even believe they believe really believe. They some people act, God only knows what they believe in! The Apostle is saying that those who truly believe what the Church believed from 33 AD onward, everywhere and always since then, are temples of the spirit. But I assure you these are far and few inbetween because there is no likeness of Christ evident in 99.999% of the people I have met, staring with me.
How sad for you.
You know no love, no peace, no joy, no meekness, no temperance, no goodness, no gentleness, no faith, ... either in yourself ... or in your fellow believers ?
Sure I do. I spurts and moments. Take a look around you next time you drive to work. Or make sure you get out of the way of a little old lady leaving the church...