'Seven Times' in the Bible

Then retraced he, and walked in the house - once to and fro, and then went up and bowed himself upon him, - and the boy sneezed as many as seven times, and the boy opened his eyes.

and Elisha sent a messenger unto him, saying, - Go and bathe seven times in the Jordan, so shall thy flesh come back to thee, and be thou clean.

Then went he down, and dipped himself in the Jordan, seven times, according to the word of the man of God: and his flesh came back, as the flesh of a little child, and he was clean.