Leviticus 23:41

[It is] a perpetual statute for your generations: in the seventh month you⌃ shall keep it.

And ye shall keep it a feast unto the Lord seven days in the year. It shall be a statute for ever in your generations: ye shall celebrate it in the seventh month.

You shall keep it as a feast to Yahweh seven days in the year. It is a statute forever throughout your generations. You shall keep it in the seventh month.