What is Your Goliath? 4

Have you ever tried to sit on a stool with just one or two legs?  It can be done momentarily, or with great skill and focus for a little longer, but the lack of stability and foundation are sure to topple anyone who tires, sooner than later.  We have talked about giants people face this month, but the possible list of these foes is endless.  Today we discover the third and most important leg of any stool - one that we must bring when facing every giant if we want to be victorious!