Your John 3:36 was from a Catholic translation. Here’s what it says in the KJV: “He that believeth on the Son hath everlasting life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him.”
MHFM: Here’s what the Greek which St. John actually wrote says:
“ὁ πιστεύων εἰς τoν υἱoν ἔχει ζωήν αἰώνιον· ὁ δε ἀπειθῶν τῷ υἱῷ, οὐκ ὄψεται ζωήν, ἀλλ’ ἡ ὀργη τοῦ Θεοῦ μένει ἐπ’ αὐτόν.”
“He who believes in the Son has eternal life, and he who disobeys the Son shall not see life but the wrath of God abides on him.”
Notice that St. John uses a participle of the verb πιστεύω in the first part of the verse, which says “he who believes” or “the one believing” (ὁ πιστεύων). However, in the second half of the verse, which is translated in our video as “he who disobeys” or “the one disobeying”, St. John uses a participle of a different verb. He uses “ὁ δε ἀπειθῶν”. ἀπειθῶν is a participle of ἀπειθέω.
ἀπειθέω is primarily defined as to refuse to obey, be uncompliant, disloyal, etc. In fact, in the King James Version, that verb ἀπειθέω is translated as ‘disobey’ or ‘disobedient’ in the following verses: Romans 2:8; Romans 10:21; 1 Peter 2:8; 1 Peter 3:1; 1 Peter 3:20; and 1 Peter 4:17.
If St. John had intended to repeat the exact same thought of believing in both parts of the verse, then he could have contrasted ὁ πιστεύων (the one believing) with ὁ ἀπιστέων (the one not believing). But he uses a different verb, ἀπειθέω, in the second half of the verse. This emphasizes that one must comply with and obey Jesus to be saved – a truth taught throughout the New Testament (Hebrews 5:9, etc.). So, the question is, what carries more authority: the words that St. John actually wrote or the words of Anglicans in 17th century England? For a Christian, the answer is obvious. It’s the former. But to a King James Only cultist, the answer is the latter. You should watch this video. It has a section refuting and exposing the absurd position of King James Onlyism.