Acts 17:10-11
And the brethren immediately sent away Paul and Silas by night unto Berea: who coming thither went into the synagogue of the Jews.
These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.
Do you see that? Reading and believing the Bible is more noble than listening to a self-styled pope who has no biblical base at all. Nor are his "infallible" edicts worth anything:
Deuteronomy 4:2
Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you.
So with that out of the way let's see what the Bible actually says about the trinity:
John 8:58
Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.
John 10:30
I and my Father are one.
Matthew 28:19
Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
Deuteronomy 6:4
Hear, O Israel: The LORD our God is one LORD:
Matthew 3:16
And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
John 1:1
In the beginning was the Word, and the Word was with God, and the Word was God.
John 1:14
And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
Acts 20:28
Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.
John 14:9
Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Show us the Father?
1 Timothy 3:16
And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
Isaiah 48:11
For mine own sake, even for mine own sake, will I do it: for how should my name be polluted? and I will not give my glory unto another.
There are of course many more passages in the Bible that proof the Trinity, if you aren't convinced yet I am more than willing to look them up.
1 Peter 3:15
But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
You are quite right when you say that cathlicks made up most of the rituals and dogma's they profess to believe in, this just isn't one of them. How you manage to distort that into proof that we should believe in a pope as well is quite incomprehensible to me. It certainly isn't theft, Jesus implores us to spread the Word far and wide, you're just confused because the cathlick church through happenstance believes in something Christians believe in as well (I use the word happenstance because I'm reasonably sure no cathlick has ever opened a Bible, their beliefs aren't based on the Bible, so any similarities have to be coincidental).
It is important to note that the Scripture quoted here proves
- that the Bible is important for Christians;
- that nothing can be added or removed from it;
Together with the fact that the catholics have a habit of making up rules that are not in the Bible (praying to statues of Jesus, thumbing rosary beads, praying to people who are not God, etc) should be proof for you that being cathlick has nothing to do with being Christian. If you want to see Heaven for yourself one day you might want to consider joining us. And as if Heaven isn't enough for you, there are even more reasons to become a True Christian™: you won't have to do any of that perverted stuff with your priests anymore!
Reading the Bible, putting your faith in Jesus and a proper baptizing will do the trick.