Leviticus 23:32; Leviticus 25:8

Leviticus 23:32

32 It is a day of sabbath rest for you, and you must deny yourselves. From the evening of the ninth day of the month until the following evening you are to observe your sabbath.”

Leviticus 25:8

8 “ ‘Count off seven sabbath years—seven times seven years—so that the seven sabbath years amount to a period of forty-nine years.