Here is a brief excerpt--but the whole article is worth the read and explanation:
Simply look at the following sequence:
- In prior times, God spoke to us through prophets in varied ways and through a succession of covenants.
- In present times God spoke to us through His Son.
- Divine Revelation was fulfilled, completed and perfected in the person of Jesus Christ, the Word of God. We await no further Divine Revelation.
- Jesus Christ gave this perfected revelation (the Deposit of the Faith) to the apostles.
- The deposit (word of God) has been passed on (transmitted) to us in writing (Sacred Scripture) and oral preaching (Sacred Tradition) from the apostles through their successors (the bishops).
- It is not by scripture alone that we receive God’s word. (cf. 2 Th 2:15)
- The authority to interpret and teach the Word is entrusted to the Church’s Magisterium. (cf. 1 Tim 3:15; Matthew 16; Matthew 18; 2 Peter)
for more links on this subject see: http://nannykim-catholicconsiderations.blogspot.com/2012/06/sola-and-solo-scriptura.html