Horatius Bonar warns against the fate of the double-hearted, exemplified by Balaam, who sought to serve both God and mammon, ultimately leading to his downfall. Balaam's life was marked by indecision, covetousness, and a desire for worldly gain, which resulted in a tragic end devoid of honor or lamentation. Bonar emphasizes that one cannot serve two masters and that the pursuit of both righteousness and unrighteousness leads to spiritual ruin. He calls for a commitment to God without compromise, urging believers to examine their lives and choose between the world and the divine. The sermon serves as a stark reminder of the consequences of a divided heart and the importance of living a life fully devoted to God.