Whereby thou shalt be saved, thou and all thy house (en oi swqhsh su kai pa o oiko sou). Future passive indicative of swzw, to save. Clearly Cornelius was unsaved in spite of his interest in Jewish worship. Clearly also the household of Cornelius would likewise be won to Christ by the words of Simon Peter. This is household conversion before the household baptism ( Luke 10:48 ; Luke 11:17 ).