'Reason' in the Bible

This is the reason Joshua circumcised: all the people who came out of Egypt, who were males, even all the men of war, died in the wilderness by the way, after they came out of Egypt.

"If we have not out of concern done this, and for a reason, saying, 'In time to come your children might speak to our children, saying, "What have you to do with Yahweh, the God of Israel?