[There is a] war against heresy, against heathenism, against human traditions. That the [heretics] use Scripture as we do gives them a very wicked weapon. The battle, then, is over the correct use of Scripture, not over Scripture itself.
Citing Scripture isn’t sufficient. Even the devil and his heretics can do that. Correctly citing Scripture is the key, and that the heretics cannot do since they lack the Spirit. As Paul puts it
The Spirit we have received is not the spirit of the world but God’s own Spirit, so that we may understand the lavish gifts God has given us. And these are what we speak of, not in the terms learnt from human philosophy, but in terms learnt from the Spirit, fitting spiritual language to spiritual things. The natural person has no room for the gifts of God’s Spirit; to him they are folly; he cannot recognise them, because their value can be assessed only in the Spirit. The spiritual person, on the other hand, can assess the value of everything, and that person’s value cannot be assessed by anybody else. For: who has ever known the mind of the Lord? Who has ever been his adviser? But we are those who have the mind of Christ. (1 Cor. 2:12-16)