Leviticus 23:39

Also, or rather, surely, as this particle is oft used; for this is no addition of a new, but only a repetition of the former injunction, with a more particular explication both of the manner and reason of the feast. The fruit, not the corn, which was gathered long before, but of their trees, as vines, olives, and other fruit-trees; which completed the harvest, whence this is called the feast of ingathering, Exodus 23:16.