when was the trinity first mentioned in the bible
Trinity While scripture does not contain the word Trinity,[16] an indication of three distinct persons can be found in 1 John 5:7 for the validity of which exist a controversy known as Johannine Comma. Early Christian belief in the deity of Jesus Christ existed since the first century in the writings of John the Apostle. (John 1:1) Jesus is also quoted as attesting to being equal with the Father. (John 8:58, 10:30)
Thomas the Apostle The name Thomas (Koine Greek: Θωμᾶς) given for the apostle in the New Testament is derived from the Aramaic or Classical Syriac: ܬܐܘܡܐ‎ Toma, equivalently from Hebrew Teom, meaning "twin". The equivalent term for twin in Greek, which is also used in the New Testament, is Δίδυμος Didymos.