“Then said Paul unto him, God shall smite thee, thou whited wall: for sittest thou to judge me after the law, and commandest me to be smitten contrary to the law?”
King James Version (KJV)
23:3 Then said Paul - Being carried away by a sudden and prophetic impulse. God is about to smite thee, thou whited wall - Fair without; full of dirt and rubbish within. And he might well be so termed, not only as he committed this outrage, while gravely sitting on the tribunal of justice but also as, at the same time that he stood high in the esteem of the citizens, he cruelly defrauded the priests of their legal subsistence, so that some of them even perished for want. And God did remarkably smite him; for about five years after this, his house being reduced to ashes, in a tumult begun by his own son, he was besieged in the royal palace; where having hid himself in an old aqueduct, he was dragged out and miserably slain.
Ac 23:3 God shall smite thee, etc. These words, spoken by the prisoner, indignant at the mockery of justice, were rather a prediction than an imprecation. I have just stated that this violent man came to an untimely death. The insult to Paul reminds us of a similar one to his Master before the same body (Joh 18:22). [Thou] white wall. By "whited wall" Paul means a hypocrite. See PNT "Mt 23:27".