This chapter analyzes the theological arguments put forward by evangelical refugee and immigration activists, which is subsumed under the term “evangelical theology of hospitality.” Evangelical leaders drew on a myriad of commands, parables, narratives, and verses from both the Old and the New Testaments to argue that, as Christians, they were called to welcome all immigrants and refugees with open arms. This chapter makes the case that evangelicals—mainstream and progressives alike—made no distinction between refugees and legal immigrants on the one hand and undocumented immigrants on the other in their theology of hospitality, which they fleshed out during the Southeast Asian refugee crisis in the 1970s and applied to refugees and undocumented immigrants alike in the 1980s. All were viewed as the modern-day equivalent of the biblical “sojourners” or “strangers” whom they were called to love, provide for, and protect.