Why is it impossible to serve both God and money?

In Luke 16:13, Jesus cautions that no servant can serve two masters, illustrating that the pursuit of worldly wealth (often referred to as 'mammon') and devotion to God are mutually exclusive. When one's heart is divided between the treasures of this world and the quest for God's kingdom, the natural tendency is to favor earthly gain, which ultimately leads to spiritual compromise. This call to a singular devotion reflects the necessity of prioritizing Christ above all worldly concerns. Believers are reminded that their true treasure lies in Christ and eternal life, thereby urging them to seek first the kingdom of God.