'Harvest time' in the Bible

Then three of the thirty chief men went down and came to David in the harvest time to the cave of Adullam, while the troop of the Philistines was camping in the valley of Rephaim.

They will be left together for mountain birds of prey,And for the beasts of the earth;And the birds of prey will spend the summer feeding on them,And all the beasts of the earth will spend harvest time on them.

“Therefore, I will take back My grain at harvest timeAnd My new wine in its season.I will also take away My wool and My flaxGiven to cover her nakedness.