Deuteronomy 16:9-12 You are to count off seven weeks from the time you first put the sickle to the standing grain.

MSB⁽ⁱ⁾ ⁹ You are to count off seven weeks from the time you first put the sickle to the standing grain. ¹⁰ And you shall celebrate the Feast of Weeks to the LORD your God with a freewill offering that you give in proportion to how the LORD your God has blessed you, ¹¹ and you shall rejoice before the LORD your God in the place He will choose as a dwelling for His Name—you, your sons and daughters, your menservants and maidservants, and the Levite within your gates, as well as the foreigner, the fatherless, and the widows among you. ¹² Remember that you were slaves in Egypt, and carefully follow these statutes.