Well with the trinity is it not hard to see that there is the Father Son and Holy Spirit. Therefore making three therefore comes the word trinity..

We see the catching away in the scriptures we see the Enoch and Elijah were taken.. But with purgatory I don't even see the hint of anything like this in the scriptures and in fact purgatory would make Christ sacrafice non effective if He did not take way our sins and become sin for us..

Therefore this is why the believers are now called the righteousness of Christ Jesus.. This is why we see that our citizenship is already in heaven..
Purgatory has no effect on one's salvation, as everyone who goes through Purgatory is already "saved," and going to Heaven. However it appears that the disagreement about purgatory is only a part of a larger disagreement about the nature of our salvation. Again I am going to try to be exhaustive so bear with me! It will be a long read, but I hope it is worth it.
So lets start at the beginning then. We both agree that the Word became flesh for the sake of us. We agree that the sacrifice of Jesus Christ is complete, and nothing else can save us from our sins besides the grace of the Lord. So where does the disagreement come in? I am going to assume based on some of the things that you have said that you believe that when you accept Jesus Christ as your personal Lord and Savior you are saved. If I am wrong, please forgive me, but that is just what the majority of non-denominational Christians in my area believe.
So assuming this is indeed what you believe, this is where you and I differ. As a Catholic I do not believe this to be true (just as I am sure you find many things Catholics do untrue!). So lets break it down.
Lets start with why Catholics do not believe "once saved-always saved,"
John 15:6
If anyone does not remain in me, he is like a branch that is thrown away and withers; such branches are picked up, thrown into the fire and burned.
How do we stay in remain in Christ?
John 15:10
10If you obey my commands, you will remain in my love, just as I have obeyed my Father's commands and remain in his love.
This of course leads into St. Peter's exhortation of us to be holy
1 Pet 1:15-17
15But just as he who called you is holy, so be holy in all you do; 16for it is written: "Be holy, because I am holy." 17Since you call on a Father who judges each man's work impartially, live your lives as strangers here in reverent fear.
But what does this mean?
1 Cor 3:10-15
10By the grace God has given me, I laid a foundation as an expert builder, and someone else is building on it. But each one should be careful how he builds. 11For no one can lay any foundation other than the one already laid, which is Jesus Christ. 12If any man builds on this foundation using gold, silver, costly stones, wood, hay or straw, 13his work will be shown for what it is, because the Day will bring it to light. It will be revealed with fire, and the fire will test the quality of each man's work. 14If what he has built survives, he will receive his reward. 15If it is burned up, he will suffer loss; he himself will be saved, but only as one escaping through the flames.
AHA! Here is where the teaching of purgatory became clear for me. For we are called to be holy as the Lord is Holy, what happens if we are not perfectly holy at our death when the Lord judges us according to "each man's work?" It is burned up and he will suffer loss, but "
he himself will be saved!" While this process of burning up of our sinful nature and making ourselves holy can take place in life (we call it sanctification) it may also happen after death, which is purgatory. How is it burned? I would argue the mere presence of our God, as
Hebrews 12:29
for our "God is a consuming fire."
Pax