Imagine a camping shop marketing this great new set. "This camping set is designed by Bear Grylls, and is profitable for resource gathering, for travel, for food preparation, for instruction in survival, that the camper may be complete, thoroughly equipped for every survival situation." This sounds like quite the camping set, doesn't it?
So, you buy the camping set, head on out to the nearest campsite and the first thing you find is that it lacks a tent. Ok, no big deal, it doesn't say it must include a tent, so long as it gives me something I can use to construct a shelter out here. But you dig further and find that it offers no swiss army knife. In fact, no sharp objects at all. It has a can of beans, but it doesn't offer a can opener, nor does the can have a ring pull top. What am I supposed to do with this? Peel it like a banana? And what's this? A map? Great, maybe this will tell me... it's... it's a picture of a tree with a half bunny half mermaid creature shouting "lets goe capping". Of all the words you could misspell, why is go the one? This isn't a camping set at all! This isn't the kind of thing Bear Grylls would design. It's not profitable for any of the things it said it was. It's not making me complete, and it's not thoroughly equipping me to survive in my own back garden, much less every survival situation.
And yet this is the picture the Catholic Church paints of the Bible. When 2 Timothy 3:16-17 says "All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work", the Catholic Church doesn't read past "All Scripture is given by inspiration of God", which, let's be honest, they can't even really claim to believe, because they not only believe the Bible gets its authority from the Church rather than vice versa, but they even believe, and frequently argue, that the Bible didn't even exist for 400 years! This belief is so strong that no matter the topic of discussion, Catholics are all but guaranteed to ignore the argument being made by making the claim that their Church is necessary for the Bible to be worth anything.
In Christianity, the Bible is inspired by God, does make a man of God complete (when used correctly, of course) and does thoroughly equip us for every good work. But it doesn't even touch on many uniquely Catholic doctrines. In fact, it opposes a lot of them vehemently. In the header image, I have listed 5. Search the scriptures, you won't find any of it. But you will find things that go against these doctrines.
Let's take obligation, for example. The so-called holy days of obligation, according to beginningcatholic.com, are "the principal liturgical feasts that honor the mysteries of the Lord, the Virgin Mary, and the saints." Catholics must attend mass on a holy day of obligation. Catchism of the Catholic Church 2181 teaches "The Sunday Eucharist is the foundation and confirmation of all Christian practice. For this reason the faithful are obliged to participate in the Eucharist on days of obligation, unless excused for a serious reason (for example, illness, the care of infants) or dispensed by their own pastor. Those who deliberately fail in this obligation commit a grave sin." (Emphasis mine).
That's quite a strong condemnation of those who do not esteem the Holy Days of Obligation as Holy Days of Obligation. Now let's go to Romans 14. "Receive one who is weak in the faith, but not to disputes over doubtful things. For one believes he may eat all things, but he who is weak eats only vegetables. Let not him who eats despise him who does not eat, and let not him who does not eat judge him who eats; for God has received him. Who are you to judge another’s servant? To his own master he stands or falls. Indeed, he will be made to stand, for God is able to make him stand. One person esteems one day above another; another esteems every day alike. Let each be fully convinced in his own mind. He who observes the day, observes it to the Lord; and he who does not observe the day, to the Lord he does not observe it. He who eats, eats to the Lord, for he gives God thanks; and he who does not eat, to the Lord he does not eat, and gives God thanks. For none of us lives to himself, and no one dies to himself. For if we live, we live to the Lord; and if we die, we die to the Lord. Therefore, whether we live or die, we are the Lord’s. For to this end Christ died and rose and lived again, that He might be Lord of both the dead and the living. But why do you judge your brother? Or why do you show contempt for your brother? For we shall all stand before the judgment seat of Christ. For it is written: “As I live, says the Lord, Every knee shall bow to Me, And every tongue shall confess to God.” So then each of us shall give account of himself to God. Therefore let us not judge one another anymore, but rather resolve this, not to put a stumbling block or a cause to fall in our brother’s way. I know and am convinced by the Lord Jesus that there is nothing unclean of itself; but to him who considers anything to be unclean, to him it is unclean. Yet if your brother is grieved because of your food, you are no longer walking in love. Do not destroy with your food the one for whom Christ died. Therefore do not let your good be spoken of as evil; for the kingdom of God is not eating and drinking, but righteousness and peace and joy in the Holy Spirit. For he who serves Christ in these things is acceptable to God and approved by men. Therefore let us pursue the things which make for peace and the things by which one may edify another. Do not destroy the work of God for the sake of food. All things indeed are pure, but it is evil for the man who eats with offense. It is good neither to eat meat nor drink wine nor do anything by which your brother stumbles or is offended or is made weak. Do you have faith? Have it to yourself before God. Happy is he who does not condemn himself in what he approves. But he who doubts is condemned if he eats, because he does not eat from faith; for whatever is not from faith is sin."
Reading through that, how could any reasonable human being conclude that a Christian could ever be obliged to attend a feast or regard any day as Holy? It says quite the opposite, does it not? The Catholic Church says it is a grave sin not to observe these "holy days of obligation", but the Bible says "One person esteems one day above another; another esteems every day alike. Let each be fully convinced in his own mind. He who observes the day, observes it to the Lord; and he who does not observe the day, to the Lord he does not observe it." (Verse 5, emphasis mine).
Romans 14 is one of those passages that I have to look up in my Catholic translations, because I assume the Catholic Church will have changed it in some way. Perhaps they've tweaked the language a little. Maybe they've said one man esteems a weekday as Holy. But I pick up the NABRE, and it turns out no, that's actually not much different from my other translations. So I have to ask the translators of the NABRE "you've translated that yourself, yet you're still Catholic?"
So you see that the Catholic Church cannot even get something as simple as special occasions right. This is the Church that literally gave us Christmas, and yet they can't see what their own Bible says about obliging people to observe it? There are only two possibilities here. Either the Bible is true, and the Catholic Church is as inept at handling it as my dog would be at handling a go cart, or the Bible itself is useless at what it claims to be. As a Christian, I am forced to go with the first option. The Bible is the inspired word of God, and it really is able to complete the man of God and thoroughly equip us for every good work. But it does not equip us for the works that are uniquely considered good by the Catholic Church, and so the only logical conclusion is that the works of the Catholic Church are not good. The conclusion, then, is that the Catholic Church is not a Church that comes from God. Rather, it is yet another organisation of men, forcing men to submit to their man made traditions. Jesus had some interesting things to say to such Pharisaical organisations in His day. What do you expect He will say to them when He calls them into judgement in the future?