An arch truth is a truth that cancels another truth.  For example, you know you are very hungry and normally would think about preparing a meal.  However, before you can think about preparing a meal, you learn that the walls of your kitchen are on fire.  Therefore, you run out of your house.  In this case:

The truth that “the walls of your kitchen are on fire” is an arch truth

that cancels out the truth that:

You are very hungry.

Now, arch truths exist in the moral realm (the realm of right and wrong).  For example, the arch truth:

Preserving moral inhibition (an inner force that stops you from doing wrong) overrules truth

cancels out the truth that:

An ignorantly deceived (that they are not responsible for an involuntary act) person is not responsible for an involuntary act.

Here are eight related arch truths:

It is a sin and socially destructive to believe anything that weakens you morally.

It is a sin and socially destructive to believe anything that weakens you morally even if true.

Truth can be evil.

Goodness has priority over truth.

A God-powered person cannot be made to do evil.

A God-powered person cannot be made to do anything against their will.

A God-powered person cannot be brought under the power of anything.

An experience of will-lessness (so-called “absence of the will”) is actually a mental hallucination (an imagination relative to which you have the unconscious delusion that it is a physical reality).