Did Jesus have any doubt?
Jesus used reason and logic in his teaching of Scripture.
Wasn't Jesus also best known as a humble teacher?
Sure Scriptures could have been written in ABC order,
but by having Scripture written so that one can discern them by subject or topic arrangement shows that those who really want to know, hungry to know, can do so. Like the people of Acts 17v11 searched or researched Scripture to see or discern if what they were hearing was really so, or really found in Scripture.
The humble Ethiopian official of Acts chapter eight asked how could he understand without someone to teach or explain... then Philip explained what he was reading from Isaiah to him. So all of Christ's followers are to teach or be teaching the same good news of God's kingdom that Jesus taught according to Matthew 24v14; 28 vs19,20.
Haven't those words of Jesus proved true?
What reasonable doubt is there about the value Jesus Sermon on the Mount?
Since all in Scripture is not literal, often context and setting can show the difference, but one must be willing to use reasoning on Scripture by comparing corresponding or parallel verses or passages.
They are not meant to cancel out one another, as some try to do, but to be considered as a whole.
2nd Thess [2vs10,11] I find to be of interest because it mentions: love of the truth. If we do not honestly love what is true then God allows for an operation of error to exist in a person that wants to believe what is not true.
So if a person so wishes, he can believe a lie as if the lie is truth.
Even finding teachers to tickle their ears, so to speak.
-2 Tim 4v3.