A zealous person is contagious, both positively and negatively. The apostle Paul cautioned that the early believers had been zealously affected, but not in a good way. Those who opposed the gospel were adamant, yet they unwisely waged war against the truth. Night and day, they zealously fought in order to hinder the ministry of the believers. Ultimately, their zeal affected the people of God. These believers who started strong were hindered by the enemies' efforts to the point that it affected their race for the Lord (Galatians 5:7). Modern day enemies of the gospel are aware of this potential pitfall for the believers. They often display more zeal than those who knowingly possess the truth. Yet, today's passage also teaches that “it is good to be zealously affected always in a good thing.” Zeal breeds zeal. Zeal in righteousness will yield righteous results.
Today's passage refers to the zeal of one man. Zeal can serve to save a nation or it can cause the shedding forth of innocent blood. The book of Numbers tells of a time when Israel allowed sin into their camp and began experiencing God's wrath. Fortunately, one man took it upon himself to save the nation of Israel from God’s impending judgment. He spared a great number of lives because he was zealous to take action. It should be noted that his zeal was for the Lord’s sake (Numbers 25:11). Unfortunately, the Bible reveals others like king Saul whose zeal brought about a far different outcome. His zeal ended the lives of innocent people. According to 2 Samuel 21:2, Saul, in his zeal to the people, slew the Gibeonites bringing a famine upon God’s people in the days of David. The famine only ended when seven men of Saul’s house lost their lives.
