There are those who deny the Trinity of God. Some of them say that the Trinity is not taught in the Bible because the word Trinity does not appear in it.
There are many verses or passages in the Bible that describe One God in Three Persons. However, none are clearer that this one:
“And it is the Spirit who bears witness, because the
Spirit is truth.
For there are three that bear witness in heaven:
the Father, the Word, and the Holy Spirit;
and these three are one.”
(1John 5:6-7 NKJV) [1]
Note:
Many Bible scholars point out that much of 1John 5:6-7 does not appear in the earliest manuscripts or in early translations from the original Greek into other ancient languages. I would point out that 1John 5:6-7 has been accepted in English translations of the Bible since the 15th Century and may be accepted as Biblical instruction. Readers requiring further proof that God is indeed One God in Three Persons are referred to my post dated 7 November 2019. The verses quoted in that post include:
Deuteronomy 6:4-7
Matthew 28:19
2Corinthians 14:14
1Peter 1:2
1Corinthians 12:4-6
Ephesians 4:4-6
The Trinity is proclaimed
in many other Bible verses as well.