In his epistles Paul also taught that Jesus is prophet, priest, and king.
In 2 Thessalonians he declared that Jesus will return a conquering king and a judge (1:7-10).
In 1 Corinthians he declared that Christ was sacrificed as a Passover lamb (5:7). He also declared that Christ will reign until he puts all his enemies, including death under his feet. Then he will deliver his kingdom up to the Father (15:24-28).
In Romans, Paul affirmed the Davidic rights of David (Rom 1:3). He sees these as integral to the gospel promised before by the prophets (1:2). He also recognized that Christ was the propitiatory sacrifice on behalf of men’s sins (3:25).
In Ephesians he referred to Christ’s resurrection and session as the time in which God granted the Son dominion over all things (1:20-23). Christ Jesus is the one who through his sacrifice invalidated the Old Covenant’s sacrificial ordinances (2:14).
In Philippians Paul connected the sacrifice of Christ on the cross with his exaltation (2:8-10).
Paul makes the same connection in Colossians (1:18). In the same context he refers to Christ’s sacrificial death (1:20). Later Paul returned to the exaltation and kingship themes (2:10; 3:1).
In his first letter to Timothy Paul called Christ “the King of ages, immortal, invisible, the only God” (1:17). In the second letter Paul spoke of believers reigning with Christ (1:11). This theme looks forward to a restoration of right dominion by mankind. Paul also looked forward to Christ returning as judge and establishing his kingdom on earth (4:1).