He that overcometh and he that keepeth (ho nikōn kai ho tērōn). Present active articular participles of nikaō and tēreō in the nominative absolute (nominativus pendens) as in Rev 3:12, Rev 3:21, resumed by the dative autōi (to him), as in Rev 2:7, Rev 2:17.
Unto the end (achri telous). That is, achri hou an hēxo above.
Authority over the nations (exousian epi tōn ethnōn). From Psa 2:8. The followers of the Messiah will share in his victory over his enemies (Rev 1:6; Rev 12:5; Rev 19:15).