The answer is: God stopped providing manna

Josh 5:12 - Now they enjoyed the produce of the land.

Once the Israelites celebrated the Passover in their new homeland, they marked a historic shift in their relationship with God. The departure from manna, which had been their primary sustenance for 40 years, signifies not just a culinary change but also an important spiritual evolution. Eating the "produce of the land" (Joshua 5:12) represents a new phase in their journey—moving from dependence on divine provision in a wilderness to the bounty provided by God’s promised land.

What’s fascinating here is the symbolism behind transitioning from manna, a daily provision that appeared mysteriously each morning, to the grounded and messy process of farming and harvesting. Manna was like a miracle in the sky—it dictated schedules, meals, and perhaps even moods. In contrast, the produce they are now enjoying reflects hard work, natural seasons, and the collaborative effort of the community in cultivating the land.

This theme echoes throughout Scripture, like the story of the first garden where humans engaged with Creation's potential (Genesis 2:15). The shift also reinforces a theological key that physical sustenance is tied to a covenantal relationship. God promised the Promised Land, but the Israelites had to engage with it, shaping their destiny and identity as a people. Explorers of the land determined their growth, not leeches of manna. So, what rich lessons on shared labor and faith can we extract from these early days in Canaan? The move speaks volumes about empowerment and collaboration.