The most popular source of theological hope for modern Christians is that of Jurgen Moltmann. Preachers, teachers, and lay people reflect Moltmann’s influence, with their hope in a this-worldly eschatology and suffering God. However, an exclusive reliance on that hope deprives the church of crucial resources in the face of global economic, environmental, and military crises. Our Only Hope explores Moltmannian hope and considers its costs before looking elsewhere for additional contributions, from Thomas Aquinas’ theological virtue of hope to nihilism and beyond, in order to encourage the church to sustain and practise hope in Jesus Christ, our only hope.