'Season' in the Bible

He said, "I will certainly return to you when the season comes round. Behold, Sarah your wife will have a son." Sarah heard in the tent door, which was behind him.

Is anything too hard for Yahweh? At the set time I will return to you, when the season comes round, and Sarah will have a son."

It happened during mating season that I lifted up my eyes, and saw in a dream, and behold, the male goats which leaped on the flock were streaked, speckled, and grizzled.