Avoid verse slinging

As a Catholic, I think there's a lot of misinformed people when it comes to early Christianity. To help them with that, they should go here, (Church Fathers)
Likewise, Catholic responses to these people are often less than helpful.
"The Church existed before the Bible".
Quite right, as this is true, at least when it comes to the New Testament.
However, if I were a Protestant, I may even concede the point that the Church existed before the Bible.
However, when you say that, I might be hearing that as the Bible is unimportant.
And the Catholic responses aren't always great.
"We don't go by the Bible alone"! A Protestant may hear that as "We don't go by the Bible".
Except that we do.
And Protestant support for Sola Scriptura isn't always great either.
For instance, I've seen people appeal to Psalm 119:105 to prove Sola Scriptura.
There are two problems with that, and both of which involve it being Jewish.
The first one is that Jews haven't traditionally accepted Sola Scriptura. The second is, reading it in context, it seems to be about The Law. The very thing Paul rejects in Romans 3 (note: he does NOT reject the moral law, even in Romans, especially Romans 6).
So, let's read the verse at hand, and then read why I say it's about the law. I should point out, I have NO problem applying this verse to scripture as a whole, I just don't think it proves Sola Scriptura.
"Thy word is a lamp unto my feet, and a light unto my path", pretty, and yes, you could apply it to the whole Bible. Not arguing against that. But, here's the thing, it even says it's about the law, in fact, in Psalm 119:97, it says, "O how love I thy law! It is my mediation all the day"!
Or some Protestants that will claim (and yes I've seen this), that Matthew 4:4 teaches Sola Scriptura. Let's look at the logical problem with this,
"But he answered and said, It is written, man shall not live by bread alone, but by every word that procedeth out of the mouth of God".
Two things to note, for one, that actually contradicts their claim, as it says we shall not live by bread alone, not that we should live by scripture alone. Another is, that Satan quotes the Bible in Matthew 4:6 (which a lot of Bibles, including Catholic ones, cross reference to Psalm 91:11, but it actually seems to me to be a reference to The Book of Wisdom, at least the "Son of God", part for more on that, go here, Apocrypha Apocalypse)
Honestly, though, a lot of times, I think we're talking past each other.
The proof texts that many Protestants offer, not only don't prove sola scriptura, but if read in their entire context, they flat out contradict it.
"Now", you might say, "but Charlie, don't you believe in material sufficiency"?
I do! There are many reasons for this, but one of which is necessity. I live in a place heavily populated by King James only Baptists (you'll note that I used the KJV a lot in my own writings, like this one, all verses from the King James Version).
So, when someone asks, "where is X belief in the Bible"? I better be able to prove it.
But, there's another reason, The Church.
"Now", you might say, "The Church doesn't teach material sufficiency"!
Very true, but neither does she condemn it.
It is one of the things allowed by The Church, so it might be properly called a "Theological opinion".
So, how is The Church a reason for this position?
As I can't write a huge article on this (as much as I want to), check the footnotes in the Catechism of the Catholic Church.
By far, the most quoted book in the Catechism is the Bible.
So The Church holds scriptures in the highest esteem.
So, when a Protestant tries to use a prooftext against Catholic beliefs, ask them to read the verses in context.
For example, if your interlocutor believes in "Once saved, always saved", and uses John 3:16 to read to prove that point, ask them to read the previous and following verses. If they claim Ephesians 2:8-9 proves "faith alone", ask them to read v. 10.
I think this is probably a better solution to Protestant-Catholic debate than verse slinging.
Discuss the Bible, mention your love of scripture, and, for the love of God (one of the few times I will use that phrase), READ and KNOW your Bible.
Remember what St. Jerome said, "ignorance of scripture, is ignorance of Christ".