As we can see below, the premillennial view was held by some very early Fathers of the Church, such as St. Papias, St. Justin, St. Irenaeus, etc. Origen saw that this understanding was a Jewish idea, which makes sense because many Jews were expecting the Messiah to come and to overthrow the Roman empire, in which their false messianic hope led them to not recognizing the Suffering Servant who came not to establish an earthly kingdom but a heavenly one. Perhaps some of the Jewish Christians held on to that understanding and applied it to the 1000 year reign found in Revelation 20. Since it was very common for Jewish rites and traditions to be practiced from time to time in order to avert the lack of belief of the Jewish Christians so that they would not feel as if they were being dragged away all at once from their beliefs, more than likely the earthly messianic kingdom that many Jews had hoped for while under Roman oppression was then transferred over to Christ’s second coming and gained some popularity among some early Christians, even Gentile Christians.