'Months' in the Bible

Then she said to her father, Only do this for me: let me have two months to go away into the mountains with my friends, weeping for my sad fate.

And he said, Go then. So he sent her away for two months; and she went with her friends to the mountains, weeping for her sad fate.

And at the end of two months she went back to her father, who did with her as he had said in his oath: and she had never been touched by a man. So it became a rule in Israel,

And his servant-wife was angry with him, and went away from him to her father's house at Beth-lehem-judah, and was there for four months.

But six hundred men, turning back, went in flight to the rock of Rimmon in the waste land, and were living on the rock of Rimmon for four months.