'Three' in the Bible

Seven sons and three daughters were born to him.

His sons used to go and hold a feast in the house of each one on his day, and they would send and invite their three sisters to eat and drink with them.

While he was still speaking, another also came and said, “The Chaldeans formed three bands and made a raid on the camels and took them and slew the servants with the edge of the sword, and I alone have escaped to tell you.”

Now when Job’s three friends heard of all this adversity that had come upon him, they came each one from his own place, Eliphaz the Temanite, Bildad the Shuhite and Zophar the Naamathite; and they made an appointment together to come to sympathize with him and comfort him.

Then these three men ceased answering Job, because he was righteous in his own eyes.

And his anger burned against his three friends because they had found no answer, and yet had condemned Job.

And when Elihu saw that there was no answer in the mouth of the three men his anger burned.

He had seven sons and three daughters.