'Seventh' in the Bible

And on the seventh day God finished his work that he had done, and he rested on the seventh day from all his work that he had done.

And God blessed the seventh day, and he sanctified it, because on it he rested from all his work {of creating that [there was] to do}.

And the ark came to rest in the seventh month, on the seventeenth day of the month, on the mountains of Ararat.