David was loyal and his loyalty was certainly infectious. Throughout his life, he had those who attempted great feats in order to assist or protect him. Others wanted to simply be a blessing to him. First Chronicles chapter 11 provides insight into such events. One of these examples involved David’s three mighty men performing a life threatening effort simply because David thirsted for a drink of water from the well of Bethlehem (1 Chronicles 11:15-19). Consider that level of loyalty that would inspire men to risk their lives simply because their king expressed a thirst for some particular water. In addition to the men who were willing to risk their lives for David’s safety, there were many others who merely wanted to be by David’s side. Such was the testimony of Ittai.
Believers should be zealous of good works, but their zeal must not spring from a position of ignorance. The Bible points to the Jews as a zealous people, but their zeal was not according to knowledge. Nobody worked harder trying to reach a righteous state than did the Jews. However, they failed to realize that true righteousness comes as an unmerited gift from God. Yet, the Jews were “ignorant of God's righteousness,” and went “about to establish their own righteousness” (Romans 10:3). Paul repeatedly testified concerning the futility of trying to earn God's favour through one’s own efforts (Acts 22:3; Philippians 3:6). Before Paul came to know Christ, he thought he should fight against Christ’s followers and zealously persecute the church of God. He even placed many of the new believers into prison and caused their deaths. Yet, he declared that all this was done in ignorance (1 Timothy 1:13). He, like the Jews, had a tremendous zeal, but that zeal was not according to knowledge.