'Forty Years' in the Bible

and your sons are evil in the wilderness forty years, and have borne your whoredoms till your carcases are consumed in the wilderness;

by the number of the days in which ye spied the land, forty days, -- a day for a year, a day for a year -- ye do bear your iniquities, forty years, and ye have known my breaking off;

and the anger of Jehovah burneth against Israel, and He causeth them to wander in the wilderness forty years, until the consumption of all the generation which is doing the evil thing in the eyes of Jehovah.