today's other readings are Psalm 100 and Lk. 5: 33-39
This hymn of praise to Jesus Christ is thought by scripture scholars to have been an adaptation by St. Paul of a very early Christian hymn. In any case, we see Paul's understanding of the nature and role of Jesus - as human, and as the Son of God: He is the king and judge of all the earth; He is endowed with with redemptive power and is the presence of God on earth.
In His being, Jesus is the presence of God among us that men and women can discern, unlike the times before Him. Through His resurrection He is the head of the Church, and His saving death reconciles all of creation and humanity with the Father.
This lovely hymn provides much material for each one of us to very slowly read, ponder and pray with. This passage is a gift. It demands that we spend time with it.