Hello, please allow me to introduce myself as a child of God. I do not under any circumstances want to offend anyone or argue the Holy word of God. I believe oneness because of several verses in the old testament starting with " Deuteronomy 4:35
Unto thee it was shewed, that thou mightest know that the LORD he is God; there is none else beside him." . Also, if you are familiar with Scofield studies ( highly referenced by many faiths) I had questions of my own, which I prayed about often. I thought of " Genesis 1:26
And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth." " Genesis 1:27
So God created man in his own image, in the image of God created he him; male and female created he them." I felt like he was speaking to his creation because he made man last, after the rest. In my Scofield, his notes read the same thoughts. If you really want to find out truth about what was changed, look at the Catholic encyclopedia volume 2, page 263. It’s right there.

It states plainly that the Catholic church changed the formula to father, son, and holy ghost. nowhere else does it mention this formula.