Too often the Church dismisses the issue of environmentalism as peripheral, or even alien, to the theological witness of the Bible. Yet the testimony of both Old and New Testaments is that God is invested in the well-being of the earth and its creatures and that humanity bears responsibility as God's steward of the same. This essay investigates this topic as it is communicated through the politeia of ancient Israel, the book of Deuteronomy. The laws of land tenure, agriculture, warfare, wild creatures, and animal husbandry are examined with an eye toward the larger biblical theological message of the Bible. Israel's practice is compared to the norms of its ancient society, and modern parallels are proposed.