'Trinity' is a word that describes three things together as one, three in concert, one divided into three or manifested as three. By definition the word 'trinity' is in the Scriptures. Listed below are a few of the trinities found in Scripture.
The two trinities that are against man:
1 John 2:16 For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world.
Revelation 20:10 The Devil, the beast, the false prophet
The trinity that over comes evil:
1 Corinthians 13:13 Faith, Hope and Charity