The first reading is a wonderful expression of the greatness belonging to Christ even before the creation of heaven and earth.
It says, “In him were created all things in heaven and on earth, the visible and the invisible. All things were created through him and for him.”
Paul there seemed to be giving us a picture of God the Son, however, this description falls short of doing that in the way that he described Christ as “the firstborn of a creation.” But, we know that God the Son existed from eternity, and was not creature.
Christ, is better described as the Second Person of the Trinity in the opening verses of Chapter One of the Epistle to the Hebrews. It goes like the following.
“In these last days he (God) spoke to us through a Son, whom he made heir of all things. Who is the refulgence of his glory, the very imprint of his being.”