In regard to the video by Dale Tuggy (a Unitarian) that Yahya Snow (a Muslim) put up; (over at Paul “Bilal” Williams’ blog, Paul is also a Muslim, a British Muslim who had an evangelical experience before becoming a Muslim, but started studying and believing liberal theology and that really messed him up. If a person is truly converted, liberal theology would not bother them so much as to cause them to give up their faith in Christ; and they would not convert to Islam. As 2 Peter 2:22 points out, the nature of that person was not changed. Jesus said one can claim to know God and call Jesus “Lord, “Lord”, but it is possible that they never knew the Lord truly and genuinely. Matthew 7:21-23; see also 1 John 2:19) The first step of Satan’s temptation to Eve was to subtly doubt and question God’s word, “Did God really say . . . ?” (Genesis 3:1-8) That is what liberal theology and liberal scholarship does; it starts slowly with doubts about God’s Word, the Scriptures. But a true believer can read and study liberals and be vigilant against their subtle lies and attacks and find victory as long as one is also truly regenerated (John 3:1-10), and has a hearty devotional life in the Word and by submission to God each day, trusting in God’s sovereignty and wisdom and goodness.
In regard to this video by Dale Tuggy, who is a Unitarian and has dedicated himself to attacking the doctrine of the Trinity; Tuggy claims that Justin Martyr was not a Trinitarian. Justin Martyr is one of the earliest Christian writers after the NT was completed. He lived from around 100 AD to 165 AD. He was executed by Rome for his faith in 165 AD.
Dale Tuggy quoted one passage in that video. Even that passage can be taken as affirming the divine triad of Father, Son, and Holy Spirit, and distinguishing between the persons, even if he did not use the word “person” or other terms for the same substance in the oneness of God between the persons. (like Matthew 28:19 and 2 Corinthians 13:14)
There is a lot more in Justin Martyr’s writings that show he indeed was Trinitarian, and distinguished between the Father and the Son and yet also understood that the Son is the same nature as the Father. The passage that Dale Tuggy quoted shows that Justin Martyr understood the three persons in a triad of some kind of equality in power and status and nature and worship, which even Dale Tuggy admitted; even without the words like “homo-ousias” and “persons” (hupostasis) – The concept of the Trinity is communicated even without using the words, “Trinity” or “homo-sousias” (same substance) and hupostasis (person).
There is much more than this, but this is sufficient for now; as I don’t have time to type up more, etc.
“And Jesus the Christ, because the Jews knew not what the Father was, and what the Son, in like manner accused them; and Himself said, “No one knoweth the Father, but the Son; nor the Son, but the Father, and they to whom the Son revealeth Him.” [Matthew 11:27 – shows a high Christology in Matthew] Now the Word of God is His Son, as we have before said.” [ shows Justin Martyr knows John 1:1 and the teaching of the whole Gospel]
[My comments in brackets]
“The Jews, accordingly, being throughout of opinion that it was the Father of the universe who spake to Moses, though He who spake to him was indeed the Son of God, who is called both Angel and Apostle, are justly charged, both by the Spirit of prophecy and by Christ Himself, with knowing neither the Father nor the Son. For they who affirm that the Son is the Father, [against modalism] are proved neither to have become acquainted with the Father, nor to know that the Father of the universe has a Son; who also, being the first-begotten Word of God, is even God.”
Justin Martyr, First Apology, 63