Follow to discover the answer to today’s question:
What do we mean when we say that Christ is the unique Word of Scripture?
I. Christ – The Unique Word of Sacred Scripture
101 In order to reveal himself to men, in the condescension of his goodness God speaks to them in human words: “Indeed the words of God, expressed in the words of men, are in every way like human language, just as the Word of the eternal Father, when he took on himself the flesh of human weakness, became like men.” 
102 Through all the words of Sacred Scripture, God speaks only one single Word, his one Utterance in whom he expresses himself completely: 
You recall that one and the same Word of God extends throughout Scripture, that it is one and the same Utterance that resounds in the mouths of all the sacred writers, since he who was in the beginning God with God has no need of separate syllables; for he is not subject to time. 
103 For this reason, the Church has always venerated the Scriptures as she venerates the Lord’s Body. She never ceases to present to the faithful the bread of life, taken from the one table of God’s Word and Christ’s Body. 
104 In Sacred Scripture, the Church constantly finds her nourishment and her strength, for she welcomes it not as a human word, “but as what it really is, the word of God”.  “In the sacred books, the Father who is in heaven comes lovingly to meet his children, and talks with them.” 
63 DV 13.
64 Cf. Heb 1:1-3
65 St. Augustine, En. in Ps. 103, 4, 1: PL 37, 1378; cf. Ps 104; Jn 1:1
66 Cf. DV 21.
67 Th 2:13; cf. DV 24.
68 DV 21.
II. Inspiration and Truth of Sacred Scripture
105 God is the author of Sacred Scripture. “The divinely revealed realities, which are contained and presented in the text of Sacred Scripture, have been written down under the inspiration of the Holy Spirit.” 
“For Holy Mother Church, relying on the faith of the apostolic age, accepts as sacred and canonical the books of the Old and the New Testaments, whole and entire, with all their parts, on the grounds that, written under the inspiration of the Holy Spirit, they have God as their author, and have been handed on as such to the Church herself.” 
106 God inspired the human authors of the sacred books. “To compose the sacred books, God chose certain men who, all the while he employed them in this task, made full use of their own faculties and powers so that, though he acted in them and by them, it was as true authors that they consigned to writing whatever he wanted written, and no more.” 
107 The inspired books teach the truth. “Since therefore all that the inspired authors or sacred writers affirm should be regarded as affirmed by the Holy Spirit, we must acknowledge that the books of Scripture firmly, faithfully, and without error teach that truth which God, for the sake of our salvation, wished to see confided to the Sacred Scriptures.” 
108 Still, the Christian faith is not a “religion of the book”. Christianity is the religion of the “Word” of God, “not a written and mute word, but incarnate and living”.  If the Scriptures are not to remain a dead letter, Christ, the eternal Word of the living God, must, through the Holy Spirit, “open (our) minds to understand the Scriptures.” 
69 DV 11;
70 DV 11; cf. Jn 20:31; 2 Tim 3:16; 2 Pt 1:19-21; 3:15-16
71 DV 11.
72 DV 11.
73 St. Bernard, S. missus est hom. 4, 11: PL 183, 86.
74 Cf. Lk 24:45
The answer to today’s question:
(Paragraph 102) When we say that Christ is the unique word of Scripture we mean that, through all the words of the Bible, God speaks only one single Word, namely the Word who is Christ. Hebr 1,2: In these last days, God has spoken to us by His Son.