Paul, speaking of his mission - spreading the gospel (good news) of God, goes on to convey that he is just another cog in the wheel that God has been turning throughout history to accomplish His plan. The gospel of Christ and the church age were new to Paul and part of the new covenant Jesus established with His death, burial, and resurrection; however, many prophets before had taken part in conveying the message of the promised Messiah. Even so, how often do we participate and join with God in accomplishing His future plans today? Perhaps even unknowingly at times - what is the extent of our influence? What is God doing in and through us in this age that will impact the age to come?
Jesus was the promised seed of the woman who would bruise the serpent's head as prophecied in the garden, he was the seed and lineage of David according to the flesh, and declared to be the Son of God with power according to the spirit of holiness, as manifested in His resurrection from the dead. It is by this same spirit that we are empowerd to live victorious lives today, tomorrow, and forever.

Romans 1:2-4