'Season' in the Bible

And he said, I will certainly return unto thee when the season cometh round; and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him.

Is anything too hard for Jehovah? At the set time I will return unto thee, when the season cometh round, and Sarah shall have a son.

And the captain of the guard charged Joseph with them, and he ministered unto them: and they continued a season in ward.