Moses' instruction to the Israelites not to keep leftover manna until morning was a significant lesson in trust and obedience. The manna, which was a miraculous provision from God, was meant to be gathered daily, teaching the Israelites to rely on God's daily provision rather than their own ability to store and save. This daily dependence on God was crucial for their spiritual growth and understanding of God's faithfulness.
The command not to keep manna overnight also prevented the Israelites from falling into the trap of greed or self-reliance. By trusting that God would provide fresh manna each day, they were reminded of His constant presence and care. This principle is applicable to modern believers as well, encouraging them to live with a sense of trust in God's provision for their daily needs and to avoid the anxiety that comes from trying to control the future. It underscores the importance of living in the present, with faith that God will meet tomorrow's needs just as He does today.