Notes on Fourth Book of Kings (Author Bishop Richard Challoner (ed.))
15:30 In the twentieth year of Joatham: That is, in the twentieth year, from the beginning of Joatham's reign. The sacred writer chooses rather to follow here this date than to speak of the years of Achaz, who had not yet been mentioned.
Original Douay-Rheims from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.