26 Then God said, "Let Us make man in Our image, according to Our likeness; let them have dominion over the fish of the sea, over the birds of the air, and over the cattle, over all the earth and over every creeping thing that creeps on the earth."How do you defend the trinity from the Bible alone?
27 So God created man in His own image; in the image of God He created him; male and female He created them. (Gen. 1:26-27 NKJ)
Now may the God of peace Himself sanctify you completely; and may your whole spirit, soul, and body be preserved blameless at the coming of our Lord Jesus Christ. (1 Thess. 5:23 NKJ)
Man is the "mirror" image of God.
God is One Substance in whom Three Divine Persons (Father, Son, Holy Spirit Mt. 28:19; 1 Jn. 5:7) subsist.
Man is One Person subsisting in Three human substances (body, soul, spirit 1 Th. 5:23).
The odds are infinitesimal this correlation is coincidence.