1-corinthians 14:38

Let - To hinder or obstruct.

But if any man be ignorant - If he affect to be so, or pretend that he is ignorant; let him be ignorant - let him be so at his peril.

But if any be ignorant ... - If anyone affects to be ignorant of my authority, or whether I have a right to command. If he affects to doubt whether I am inspired, and whether what I utter is in accordance with the will of God.

Let him be ignorant - At his own peril, let him remain so, and abide the consequences. I shall not take any further trouble to debate with him. I have stated my authority. I have delivered the commands of God. And now, if he disregards them, and still doubts whether all this is said by divine authority, let him abide the consequences of rejecting the law of God. I have given full proof of my divine commission. I have nothing more to say on that head. And now, if he chooses to remain in ignorance or incredulity, the fault is his own, and he must answer for it to God.

14:38 Let him be ignorant - Be it at his own peril.