Heresies Debunked

Arianism:

Arianism is a doctrine popularised by a man named Arianus. It was the heresy that was the reason for the gathering of the Council of Nicaea in 325 AD. The heresy states that Jesus, or the son of God, was created by the Father. This meaning, according to Arianus, Jesus is not in any way equal to the Father or consubstantial(i.e. of the same substance) with the Father. 

As this is a heresy, how are we to go about debunking it? Firstly, let us read the Gospel of John. "1 In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men," (John 1:1-4 KJV). As the verse says, in the beginning, the word whom was God, was with God. Who is the word? Well, later in the chapter we read, "And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh after me is preferred before me: for he was before me And of his fulness have all we received, and grace for grace. For the law was given by Moses, but grace and truth came by Jesus Christ," (John 1:14-17 KJV).

Jesus was the word of God, yet, in the beginning, he was with God(i.e. likely the father). So, if Jesus is God, and there is only one God(Isaiah 46:9, Deuteronomy 4:3) Arianism thus must be wrong. 

*Modalism:

Modalism teaches that instead of the distinction of persons among God, they are all perfectly one and God changes among the 3 persons. 

Analogies People Use:

The largest analogy used for Modalism is God is like water. Like water can change its forms(liquid, solid, gas) God can do this among the persons(The Father, Son(Jesus), and Spirit).

So, how do we debunk Modalism? Well, in the Gospel of Luke, we read, "And the Holy Ghost descended in a bodily shape like a dove upon him, and a voice(i.e. from The Father) came from heaven, which said, Thou art my beloved Son; in thee I am well pleased," (Luke 3:22 KJV). This verse debunks modalism as the three persons are seen at the same time, if God changes among persons, this can not be possible. 

We also see in Matthew, "16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him," (Matthew 3:16 KJV). How can we see The Spirit and The Son at the same time if Modalism was true?