Deuteronomy 16:7-9

Young's Literal Translation

⁷ and thou hast cooked and eaten in the place on which Jehovah thy God doth fix, and hast turned in the morning, and gone to thy tents;

⁸ six days thou dost eat unleavened things, and on the seventh day [is] a restraint to Jehovah thy God; thou dost do no work.

⁹ `Seven weeks thou dost number to thee; from the beginning of the sickle among the standing corn thou dost begin to number seven weeks,