I would not intimate even, that a PhD in theology is required in order to be saved.
But a rudimentary knowledge of those doctrines is surely most necessary. In the 5 sections of my booklet I think
I explain, for example, that a knowledge first of God is necessary and then go on to elucidate some of the details of that doctrine of God. He is not only the Creator of all things, but He also is the One who has ordained all that He created. Further, He is also the Sovereign Ruler of all things so that NOTHING that exists or happens is left to chance (whatever that is) but rather He has likewise ordained those things too and by His providence He brings all that He has ordained to pass. Just this statement alone rules out any such foolish notion that salvation is one part God and one part man, i.e., God by post-destination
(decrees after the fact) determines who is going to be saved. Or to put it in modern Arminian/semi-Pelagian terms... God looks into the future to see who is going to believe and then post determines
what He saw. A god who this thinking describes is not the God of the Bible. Thus, anyone who believes in this god, has put their faith into an idol which is nothing more than the fabrication of man in rebellion against the One True God.
Get my drift... snowbank?
A christ who died for everyone but saved no one in particular is NOT the Christ of the Bible. This type of thinking always asserts that their christ only made salvation possible
and it is effective only IF a sinner decides to believe on his/her own, etc., etc., ad nauseam.
This is why I am so adamant that Christians be taught the full biblical Gospel before they venture out into the world to become "soul winners". A false gospel cannot save because God the Spirit will never work through a lie, a falsehood, a deceitful message to call sinners to Christ. God is a God of truth. And only the truth; found in the inspired written Word of God, can set a man free (Prov 2:1-7; Jh 6:45; 8:30-32). And a true salvation is not just justification by also sanctification which also can only be accomplished through truth, the truth of God's holy Word (Jh 17:17).
2 Peter 3:15-18 (ASV) "And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also, according to the wisdom given to him, wrote unto you; as also in all [his] epistles, speaking in them of these things; wherein are some things hard to be understood, which the ignorant and unstedfast wrest, as [they do] also the other scriptures, unto their own destruction. Ye therefore, beloved, knowing [these things] beforehand, beware lest, being carried away with the error of the wicked, ye fall from your own stedfastness. But grow in the grace and knowledge of our Lord and Saviour Jesus Christ. To him [be] the glory both now and for ever. Amen."