'Month' in the Bible

In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month -- on that day all the fountains of the great deep burst open and the floodgates of the heavens were opened.

On the seventeenth day of the seventh month, the ark came to rest on one of the mountains of Ararat.

The waters kept on receding until the tenth month. On the first day of the tenth month, the tops of the mountains became visible.

In Noah's six hundred and first year, in the first day of the first month, the waters had dried up from the earth, and Noah removed the covering from the ark and saw that the surface of the ground was dry.

And by the twenty-seventh day of the second month the earth was dry.

Then Laban said to him, "You are indeed my own flesh and blood." So Jacob stayed with him for a month.