Augustin delighted in viewing the church's bishops sitting on thrones, therefore announcing the Millennium as having begun already. After history this view seems hard to maintain. The thousand years now appear - even if future - as squeezed in where no demand is. Many assign it to the Israel as a kind of parallel kingdom to the one supposed to remain where it is said to come from.
This half verse is badly supported by manuscript evidence. Against his own apparatus (indicating omission from Sinaiticus to Syriac, from koine's majority to several early commentaries) the Nestle-Aland critical edition keeps it in its main text. Why?