David's repeated success in battle against the Philistines underscores his exceptional abilities and the divine favor he enjoys. While Saul remains king, David's military prowess and leadership qualities become increasingly apparent to the people of Israel. This growing recognition is crucial, as it not only elevates David's status but also begins to sow seeds of jealousy in Saul's heart, which will later lead to significant conflict.
David's victories are seen as a testament to his character and God's blessing upon him. His ability to lead and succeed where others do not is a sign of his future potential as a leader of Israel. The verse highlights the beginning of David's journey from a shepherd boy to a renowned warrior, and eventually, to a king. It also serves as a reminder of how God often uses ordinary people to achieve extraordinary things, preparing them through various life experiences for the roles they are destined to fulfill.