'Seven' in the Bible

Seven sons and three daughters were born to him.

Then they sat down with him on the ground for seven days and seven nights, yet no one spoke a word to him, for they saw that his pain was very great.

He will deliver you from six calamities; yes, in seven no evil will touch you.

So now take seven bulls and seven rams and go to my servant Job and offer a burnt offering for yourselves. And my servant Job will intercede for you, and I will respect him, so that I do not deal with you according to your folly, because you have not spoken about me what is right, as my servant Job has."

And he also had seven sons and three daughters.