In Matthew 6:19-24, Jesus advises focusing on heavenly treasures rather than amassing earthly wealth, as where our treasures are reflects the state of our hearts. He warns against serving both God and money, urging a singular devotion. In Luke 16:1-14, Jesus tells a parable of a manager to emphasize wise use of worldly resources for spiritual purposes. He stresses faithfulness in small matters and the inability to serve both God and wealth, highlighting the need to choose our priorities carefully.