1 Chron. 20:4-8 And it came to pass after this, that there arose war at Gezer with the Philistines; at which time Sibbechai the Hushathite slew Sippai, that was of the children of the giant: and they were subdued. And there was war again with the Philistines; and Elhanan the son of Jair slew Lahmi the brother of Goliath the Gittite, whose spear staff was like a weaver's beam. And yet again there was war at Gath, where was a man of great stature, whose fingers and toes were four and twenty, six on each hand, and six on each foot: and he also was the son of the giant. But when he defied Israel, Jonathan the son of Shimea David's brother slew him. These were born unto the giant in Gath; and they fell by the hand of David, and by the hand of his servants.
When Saul was king of Israel, there were no giant slayers in their midst; so when Goliath stood against the armies of Israel, the Israelites trembled! There was, however, a young shepherd, whose intimate knowledge of His God inspired and empowered him to fight the evil giant, and defeat him.
David's victory over Goliath paved the way for those after him to slay the giant's offspring, who were also giants. So when those giants arose to fight, they already had knowledge that they could be defeated. David's breakthrough had set a powerful precedent for all of Israel's "mighty men".
All around us there are "Goliaths", evil giants...but none of them are "undefeatable". In fact, we have an entire Bible full of examples of saints who stood their ground and routed their enemies. Let’s follow their example, and set new precedents fighting the giants of our day. We too can leave a legacy of victory, inspiring our children and grandchildren to victory over the "sons of Goliath"!