Some Bible verses on tradition:

"I commend you because you remember me in everything and maintain the traditions even as I have delivered them
to you" (1 Cor. 11:2).

"So then, brethren, stand firm and hold to the traditions which you were taught by us, either by word of mouth or by
letter." (2 Thess 2:15)

“Finally, brethren, we beseech and exhort you in the Lord Jesus, that as you learned from us how you ought to live
and to please God..”  (1 Thess 4:1)

"You, then, my son, be strong in the grace that is in Christ Jesus, and what you have heard from me before many
witnesses entrust to faithful men who will be able to teach others also" (2 Tim. 2:1-2)

Question: My Protestant friends say that their church goes by the Bible Alone, but that the Catholic Church has
added a lot of man-made traditions to the Word of God...is that true?

Answer: No, it is not true. Protestants have as their sole rule of faith the written Word of God, which we find in
Sacred Scripture. The Catholic Church has as its sole rule of faith, the entire Word of God, as it is found in Sacred
Scripture and Sacred Tradition. All of the Word of God was at one time passed on orally...Sacred Tradition.  
Eventually, some of Sacred Tradition was written down...this became our bible, which is written tradition. However,
Scripture itself tells us that not all of the things that Jesus said and did were written down.

From the Catechism of the Catholic Church:
"The apostles entrusted the "Sacred deposit" of the faith (the depositum fidei), contained in Sacred Scripture and
Tradition, to the whole of the Church. "By adhering to [this heritage] the entire holy people, united to its pastors,
remains always faithful to the teaching of the apostles, to the brotherhood, to the breaking of bread and the prayers.
So, in maintaining, practicing, and professing the faith that has been handed on, there should be a remarkable
harmony between the bishops and the faithful."  (
Part 1, Chapter 2, Article 2, Paragraph 84)

One Last Thing to Consider:  Every church whether they will admit it or not has it's own traditions.  Many
of these churches actually practice many traditions which get their roots from the Catholic Church.

Here are a few Traditions which many other non-catholic churches practice or believe in:
1.  Sunday as the Sabbath Day: Tradition - not found in the Bible!  Catholic Tradition.
2.  Wednesday night Church meetings:  Tradition - not found in the Bible!
3.  Alter calls:  Tradition - not found in the Bible!
4.  Sola Scriptura:  Tradition - not found in the Bible nor is it Biblical!
5.  Faith Alone:  Tradition - not found in the Bible nor is it Biblical!
6.  Dates of Christian Holidays:  Dates are based on Catholic Church tradition.  They are not found in the Bible!
7.  Canon of the Bible:  Tradition!  No list of books is found in the Bible.  The Bible is a Catholic Tradition.
8.  The Trinity:  Not defined in the Bible.  Defined by the Catholic Church as a Dogma of the Christian Faith.
9.  The Creeds:  Not found in the Bible.  The Creeds where written down by the Early Church.  Catholic Tradition!
10. Ash Wednesday:  Tradition - not found in the Bible!  A tradition which comes from the Catholic Church.
Are Catholic Traditions Biblical?
The Catholic Church is often accused of going against
scripture by creating traditions.  Many non-catholics
believe that traditions are bad things and that they are not
Biblical.  Common sense tells us that traditions in and of
themselves are not all bad.  A quick look around us will
reveal that all churches retain some sort of tradition.  The
Bible clearly shows that not all traditions are condemned
by God.  In fact the Apostles first taught the Gospel
through oral tradition since the Bible was not yet put
together.  The traditions of the Catholic Church are
scriptural and do not go against the Bible.  Lastly, it is very
evident from scripture that the Apostles were not against
following tradition since they often spoke of it.  By holding
and teaching these traditions the Catholic Church is
actually adhering to what the Apostles taught and what the
Bible clearly teaches.  
St. Paul Preaching