Leviticus 23:32; Leviticus 25:8

Leviticus 23:32

32 "It is to be a sabbath of complete rest to you, and you shall humble your souls; on the ninth of the month at evening, from evening until evening you shall keep your sabbath."

Leviticus 25:8

8 'You are also to count off seven sabbaths of years for yourself, seven times seven years, so that you have the time of the seven sabbaths of years, namely, forty-nine years.