Comment on the role of "parousia" for the early church fathers.
Christian Fathers of Orthodox Christianity all agree that Christ will return (Parousia) to judge the living and dead (Parousia is stated in the Nicene Creed). The difference is in the details of the second advent and what comes before it and afterwards (see Chapter 15 of The Mosaic of Christian Belief: Twenty Centuries of Unity and Diversity by Roger E. Olson, 2016). Thus, Justin Martyr, Tertullian, and Irenaeus, for example, all held that an earthly rule would be established for a set period—identified with a thousand years —after the return. This set period of rule is followed by the end of history and a new heaven and earth. Justin Martry clearly states in "Dialogue with Trypho" that some coreligionists differed from his view of two resurrections. Others denied this "one-thousand-year" earthly rule; instead, there is a distinction between God’s presence in the church and lives of believers and the final kingdom of God and new creation. This latter view is known "amillennialism" and is the view of the Roman Catholic Church. In addition, "amillennialism" was the view of Origen and Clement of Alexandria.