Argumentum ad verecundiam, otherwise known as appeal to reverence or appeal to authority, is a common logical fallacy. "This person says it, therefore it is/must be true". 9 times out of 10, the best way to deal with it is simply to point it out. A fallacy is a fallacy.
But the 10th time, the one making the fallacy will appeal to their own authority, or in the case of the individual who inspired this article, they'll see me debating their friend and say something along the lines of "but he's an actual scientist, so he knows his stuff" (keeping in mind his friend's argument was to completely ignore the entire point I made and instead mock the fact that I used to not understand the function of a very specific screw until I saw it being removed).
In these situations, it's better to turn it into an attack on the ego. It is (or at least it should be) rather embarrassing to be called out on making a common fallacy that anyone who's ever taken a critical thinking class would laugh at, but it's a lot more embarrassing to try to pull rank on someone who then proceeds to take your qualification and beat you with it.
Imagine two people fighting in the streets. Suddenly, one of them gets the other in a headlock, and the one in the headlock shouts "I have a black belt in karate!" That's great, but merely telling your opponent you have a black belt isn't getting you out of that headlock. If you're a black belt, you should have everything you need to get out of that headlock (not to mention you should be able to avoid getting into it in the first place, so the fact that you are in that headlock is just embarrassing), and so the whole situation actually makes it look like you don't even have that black belt.
In the same way, merely appealing to your own authority is not an end to an argument. Rather, it suggests you don't have a lot else to defend your view with. Obviously, in this case, I have used a scientist arguing for Evolution, but the concept applies across the board. No matter who you're arguing with on which topic, appeal to authority is a logical fallacy, and to appeal to one's own authority is embarrassing. It could be a priest, it could be a teacher, it could be a lawyer, anyone appealing to their own authority to defend any topic is embarrassing themselves.
There is, of course, one major exception, and that is when the debate is directly tied to the authority of the individual debater. For example, most followers of this ministry know that Carl is a pseudonym I used to use (I now use Brian) to prevent ad hominem attacks and ensure God gets the glory when I do well. So, let's suppose an opponent of this ministry was to sit down with my mother and start arguing about who I am. The opponent shouts "but he's only 14! Why should we believe anything he says?" My mother could very easily tell that person "actually, I gave birth to him, and I can tell you quite certainly that he is older than 14." There is no one on this earth with more authority to tell you my age than the very woman who bore me, and so that would legitimately end the debate, or at least squash that particular argument, right there.
Just as any debate about me would be directly tied to the authority of each debater, so also are all theological debates directly tied to the authority of God. In the case of Evolution, no human has ever seen the origins of our kind. But the Lord, who created us, did. When it comes to history, any history, witness testimony is critical. Even I cannot authoritatively declare my own age, because although I was also there when I was born, I remember none of it. But my mother could detect an error in my birth certificate. In the same way, witness testimony is infinitely more reliable than circumstantial evidence and a lot of guesswork, even if those guesses come from scientists. The history found in Genesis is far more reliable than anything Darwin ever wrote simply because God is the only one living who saw it happen.
This same God, being more qualified than anyone to tell you where we came from, is also qualified to tell you where we're going. With that authority, He declares that we have violated His statutes, and the only just punishment is Hell. Nevertheless, He has also provided a way to avoid this fate. The Lord Jesus Christ lived a perfect life as a human being, and was condemned to death on a cross. He died, but He also rose again. Through faith in His death and resurrection, all of our sins can be forgiven, thus instead of Hell, we can go to Heaven. No one in all eternity has the right to grant you entrance to the Kingdom except Jesus. Thus, when you stand before the throne, you need to be able to appeal to His authority.