Bede

And the fool who appears after he has been raised on high, etc. For he indeed will be lifted on high when he will falsely claim to be God. But raised on high, he will appear as a fool, because in his very exaltation, he will fall by the advent of the true judge; if he had understood this, he would have put his hand over his mouth, that is, if he had foreseen his own punishment when he began to grow proud, he perhaps would not have been lifted in such boasting of pride. …

Commentary on Proverbs ↗