Leviticus 23:39

American Standard Version (ASV):
Howbeit on the fifteenth day of the seventh month, when ye have gathered in the fruits of the land, ye shall keep the feast of Jehovah seven days: on the first day shall be a solemn rest, and on the eighth day shall be a solemn rest.

King James Version (KJV):
Also in the fifteenth day of the seventh month, when ye have gathered in the fruit of the land, ye shall keep a feast unto the LORD seven days: on the first day [shall be] a sabbath, and on the eighth day [shall be] a sabbath.