Albert Barnes Commentary Numbers 14:34

"After the number of the days in which ye spied out the land, even forty days, for every day a year, shall ye bear your iniquities, even forty years, and ye shall know my alienation." — Numbers 14:34 (ASV)

My breach of promise - In the original, a word, found elsewhere only in (Job 30:10), and meaning “my withdrawals” or “my turning away.” See the margin.