Unitarians assert that God is one, but that there are not three persons in one Godhead. Sabellians assert that the Father, the Son, and the Holy Spirit are three aspects of God, but not three persons. Arians assert that Christ was a created being, and therefore not God – and thus deny the biblical doctrine as well. Unitarians, Sabellians, and Arians are heretics, and do not have eternal life (Jn.17:3). These and other heresies have raised their evil heads from time to time, through the centuries. Today they continue to do so, in the various cults that have proliferated. For example, the so-called ‘Jehovah’s Witnesses’ are in reality Arians, and Sabellianism is seen in such groups as the Branhamites and others. The devil has much to gain in promoting such damnable heresies.
But what saith the Scripture?
“For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one” (1 Jn.5:7). There are not three Gods; there is only one God. Nor are these merely three aspects of one God; but there are three persons, three divine persons, in one Godhead. The Father is God; the Son (or Word) is God; and the Holy Spirit is God. Nor are they three parts of one God; but each divine person is fully God.
The inspired record does not attempt to explain this truth; it simply states it. It is a truth that could only ever be known by divine revelation. That there is a God, and that he is all-powerful and the Creator of all things, is a truth revealed by the creation itself (Rom.1:20); but that this one God exists eternally in three persons, is a truth that could only be known by divine revelation. And in the pages of the Bible, God has revealed it.
In Matt.28:19, Jesus said, “Go ye therefore, and teach all nations, baptizing them in the name (singular) of the Father, and of the Son, and of the Holy Ghost.” These words of the Saviour show us that there is ONE God, but that he exists in three persons: Father, Son, and Holy Spirit.
In the Scriptures, especially in the New Testament, the doctrine of the Trinity is revealed in numerous places. We will confine ourselves to just some of the many that there are; and especially to the more emphatic of these.
Firstly, we will consider various passages which reveal that the Lord Jesus Christ, the Son of the Father, is God. And secondly, we will consider some passages which reveal that the Holy Spirit is God. The heretics who deny this glorious doctrine do not, of course, deny that there is a God, and that he is one; and they readily accept that the Father is God. But it is against the deity of the Son, and of the Holy Spirit, that they direct their attacks.
Firstly, the truth that the Lord Jesus Christ, the Son of the Father, is God:
In Jn.1:1 we read, “In the beginning was the Word, and the Word was with God, and the Word was God.” Here this great truth is made plain! Christ – the Word – was with God, and yet was God. This means that he was with God the Father, but was God, just as the Father was God.