'Fault' in the Bible

Going out the next day, Moses noticed two Hebrew men fighting right in front of him. He told the one who was at fault, "Why did you strike your companion?"

There is no straw given unto thy servants, and they say to us, Make brick: and, behold, thy servants are beaten; but the fault is in thine own people.

Therefore the people quarreled with Moses and said, “Give us water so we may [have something to] drink.” And Moses said to them, “Why do you quarrel with me? Why do you tempt the Lord and try His patience?”