Those who are fearful or insecure about their relationship with God often quote from the Old Testament. (Those who believe that life is basically trash like to quote from Ecclesiastes, the OT book written by the pessimistic and disillusioned-with-life King Solomon, whose theme is “All is futile; there’s nothing new under the sun.”)
In sharp contrast, those who enjoy God’s acceptance are inclined to quote from the New Testament, and how there is something new every day in the Son. “The Law came through Moses, but grace and truth came through Jesus Christ.”
I’m not decrying the Old Testament, which has so many uplifting and inspiring verses (witness the Psalms). Neither am I suggesting that we exclude one in favour of the other, but rather that we should include and enjoy both as lovers of Jesus and lovers of “the God of our Lord Jesus Christ, the Father of glory” (Ephesians 1:17).
So, while glorifying the Son of God as the Saviour of the world, let’s also glorify God our Father as the Creator of all things. Sing solemn hymns that glorify our Creator, the Maker of heaven and earth, and joyful songs that glorify our Exalted Redeemer. (cf. Revelation 4:11 and 5:12)
It’s not a question of whether the Father or the Son, but rather which one meets the need of the moment, or the mood we’re in. The good news is that our fellowship “with the Father and His Son, Jesus Christ” is the very foundation of our fellowship with one another (1 John 1:3).