If a Catholic examines a Church doctrine, studies the issue, decides that it is wrong and that they are going to live in contradiction to it, should they cease calling themselves Catholic?
I think that the Church allows one to question doctrine, but at the same time, a Catholic questioning a doctrine is still required to engage it and submit to it as they struggle.
I think Catholics struggle with various Catholic teachings at one time or another, myself included. The bottom line is this: is what the Church is teaching true?
Here are some bible verses to help you with that:
o “Amen, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”
Matthew 18:18
o Then Jesus approached and said to them, “All power in heaven and on earth has been given to me. Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, until the end of the age.”
Matthew 28: 18-20
• “And when he had said this, he breathed on them and said to them, “Receive the holy Spirit. Whose sins you forgive are forgiven them, and whose sins you retain are retained.”
John 20:23
• o “Whoever listens to you listens to me. Whoever rejects you rejects me. And whoever rejects me rejects the one who sent me.”
Luke 10:16
• The Church is guided by the Holy Spirit into all truth
o But when he comes, the Spirit of truth, he will guide you to all truth. He will not speak on his own, but he will speak what he hears, and will declare to you the things that are coming. He will glorify me, because he will take from what is mine and declare it to you. Everything that the Father has is mine; for this reason I told you that he will take from what is mine and declare it to you.
John 16:13-15
• The Holy Spirit will teach and remind them
o And I will ask the Father, and he will give you another Advocate to be with you always, the Spirit of truth, which the world cannot accept, because it neither sees nor knows it. But you know it, because it remains with you, and will be in you.
John 14:16
• The anointing of the Holy Spirit remains in you
o As for you, the anointing that you received from him remains in you, so that you do not need anyone to teach you. But his anointing teaches you about everything and is true and not false; just as it taught you, remain in him.
1 John 2:27
• The Apostles spoke with the voice of the Holy Spirit
o “It is the decision of the holy Spirit and of us not to place on you any burden beyond these necessities,”
Acts 15:28
• The Church is the pillar and foundation of truth
o But if I should be delayed, you should know how to behave in the household of God, which is the church of the living God, the pillar and foundation of truth.
1 Tim 3:15