With regards to the more technical aspects of theology, I'd like to offer a comment for what it may be worth. We are all quite familiar Habakkuk 2:2 which instructs the prophet to "Record the vision and inscribe it on tablets, that the one who reads it may run." This phrase literally translates as "one may read it fluently." I don't believe I am taking excessive liberties by adding a slight paraphrase to its meaning, the little word, "so," Biblical instruction typically begins with a command to action leading to the desired objective. For me, the link or bridge between the two parts of the instruction is "so that."
In other words, the most critical aspect of instruction is the ability to communicate with your particular audience, or at least the consensus, at the level where the vast majority are likely to comprehend what is being taught. Now, not everybody is wired like me, and I believe that is out of Divine mercy to the Body of Christ. What I endeavor to do, both as a giver and receiver of Biblical information is to break down the messages, and ultimately, they are messages, to its simplest forms.
For the simple brother and sister you are laying a foundation upon which, according to the individual's measure of grace, can build upon it as they are able. If you are teaching an audience of theology students, then it goes without saying that your level of communication can be in a more technically sophisticated form. However, though I believe the approach can be simplified for the appropriate audience, that does not of necessity mean that the message itself has to be watered down or made simplistic.
We read Paul's letters such as to the Colossians, which is a theology deep as any in the New Testament, especially in the opening chapter. Keep in mind that the vast majority of saints there were illiterate. Also, keep in mind that Paul was never interested in impressing people with his "great knowledge" but in communicating spiritual truth, beginning and ending with, who Christ was in them, and who they were in Christ.
Between those two end points subsequent spiritual knowledge was filled in. I look at the depth of this letter with this background in mind and it is clear that these poor, unsophisticated, illiterate Christians had a far deeper spiritual understanding than the vast majority of Christians in our day, despite our technical sophistication. Frankly, as a whole, we are by comparison, Barbarians. We must remember that the operative term is communicate, “so that one may read it fluently.” That is always the objective. How you do it is between you and the Holy Spirit.