"which it clearly shows", or which "IS WRITTEN"?? Big difference.
Are you still hung up about the word Trinity not being in the Bible? If you take that approach we might as well throw the Bible out since the word "Bible" ain't found in the "Bible" either. 

Proverbs 29:2 "When the righteous are in authority, the people rejoice: but when the wicked beareth rule, the people mourn."