A term often used religiously, mostly among Catholics, is trinity. A term not found in the Holy scriptures. “Tri” means three, so does the number three have any significance in the scriptures? This is worthy of our attention because some claim to want to honor God, but reject the Son. Some do not believe in the Holy Spirit. The Bible states in I John 5:7 “For there are three that bear record (testify) in heaven, the Father, the Word (see John 1:14), and the Holy Ghost: and these three are one. In other words, these three are one. The Biblical term is Godhead, not trinity.
In the New Testament, the word “Godhead” appears three times. Each time it draws attention to the Father, the Son, and the Holy Spirit. The fact that these three persons are meant by the term “Godhead” is seen in Matthew 28:19 where the Great Commission as stated there is to baptize believers into the names of the Father, the Son, and the Holy Spirit thereby making obedient believers members of the family of God, which is the church of the living God (Ephesians 3:15; 1 Timothy 3:15; cf. also Acts 2:38,47). The three are found mentioned collectively in other passages such as II Corinthians 13:14, “The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Ghost, be with you all. Amen.” The Greek words “theion” and “theotetos” are translated “Godhead” in the KJV and ASV where once “theotetos” is translated “divinity” (Romans 1:20).
At Mars’ Hill, Paul reasoned, “Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man’s device” (Acts 17:29). The nature and power of the Godhead has been made manifest to the world so that there stands no excuse for not submitting to the authority of God, so argued Paul to the Romans, “For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead [divinity, ASV]; so that they are without excuse” (Romans 1:20). The last reference to the Godhead as such is also from the pen of Paul, “For in him [Jesus Christ] dwelleth all the fulness of the Godhead bodily” (Colossians 2:9).
The Bible is the word of the living God (II Timothy 3:16-17). The Bible is the unique source of authoritative information on the one true God of the universe. The apostle John wrote, “Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world” (I John 4:1).
The only way to be pleasing to the Father is to abide by the teaching or doctrine of Jesus Christ (2 John 9) which is revealed to us through the word of God which is the sword of the Spirit (Ephesians 6:17). There is no getting around these truths of the Godhead if you want to be saved.