I personally wouldn't trade bible verses with the heretic. Instead, try the approach that "the church is the teacher of mankind,not the Bible". In this forum's library I think you can find an apologetics article
on this topic by the famous Jesuit, Father Arnold Damen, who came to America in the 1880s. He battled the protestants from the east coast to the Mississippi and made hundreds of converts. He also founded Loyola University in Chicago. The article (his sermon) is only about 20 pages. But it is pure logic. Even if your friend doesn't convert, you will have gained a lot of ammunition for future confrontations.
Below are short snips from 2 different sermons given by Fr. Wathen that might help.
The Bible and the Missal @ 8:28
"…Catholics do not read the bible in the same way [as protestants]… because Catholics do not read the bible with the idea of defending their faith through the passages.
And I remind you that whenever you do get into a discussion with non-Catholics on the subject of religion, do not let them begin to quote the bible to you. You should say: “Oh no, if we’re going to talk religion, we’re not going to refer to the bible, because you and I think of the bible in totally different ways. You’re not willing to accept my view of the bible, why should I accept yours?”
For example, we understand that not the bible, but the Church is the source of our faith, and the Church points to the bible as a reference. In other words, the bible for us Catholics is like a text book, or a manual, or a prayer book.
But the protestants look to the bible as the chief source of the teaching of his religion, unless you can overcome that disparity you should not discuss the bible in these kinds of discussions. Of course without the bible, the protestant has nothing to talk about because he cannot talk about history, protestants have no history to speak of…."
Outside the Church there is no salvation @ 11:00
"… concerning those who are not in the Catholic Church, by what power will they be saved? Let us grant that they cannot save themselves anymore than any man can go to the moon without some kind of help.
The power of salvation comes from Christ Himself, as Christ said, without Me you can do nothing. When He said without me you can do nothing, He meant literally nothing. You cannot take that first step without Christ.
And you will say; well they believe in Christ, and my answer is, you forget that Christ and the Church are one. If you separate the Church from Christ, you have sought to divide Christ. There is no such thing as Christ without the Church because the Church is His Mystical Body.
As St Augustine referred to this mystery, the Church is with Christ, the whole Christ, there is no salvation independently of the Church anymore than there is salvation independently of Christ. You can never separate Christ from the Church because the two are one.
And this is of course the great heresy of Protestantism, they dare to separate salvation from Christ because they separate salvation from the Church. And I’m going to ask you, by what power can they be saved?..."