Question: John 17:3 refers to the “Father” as “the only true God.” A man belonging to the “Faith” sect points out that John 1 makes a distinction between “the word was with God” (should be “the God”), whereas “the word was God” (is not “the God”); and that this prevents him from accepting the statement that Jesus is God in the full sense that the Father is the true God as in John 17
Answer: As the Father is the true God, so is the Son (1 John 5:20); and we might add the Holy Spirit also. This is proved of the three Persons, if we compare Isa. 6 with John 12:41, and Acts 28:25-27: all the truth, and grace, and glory pertain to the Father, the Son, and the Holy Spirit, alike God and Jehovah.
The “faith sect” must be a burlesque of faith, a school of nothing but unbelief. The man referred to understands Greek no better than Querist who owns his ignorance honestly. For the distinction in John 1:1 has nothing to do with the alleged difference, but only with the predicative usage, which in Greek requires the absence of the article, as every scholar knows.