'Months' in the Bible

And she said unto her father, Let this thing be done for me: let me alone two months, that I may go up and down upon the mountains, and bewail my virginity, I and my fellows.

And he said, Go. And he sent her away for two months: and she went with her companions, and bewailed her virginity upon the mountains.

And it came to pass at the end of two months, that she returned unto her father, who did with her according to his vow which he had vowed: and she knew no man. And it was a custom in Israel,

And his concubine played the whore against him, and went away from him unto her father's house to Bethlehemjudah, and was there four whole months.

But six hundred men turned and fled to the wilderness unto the rock Rimmon, and abode in the rock Rimmon four months.