SB Canto 2
The fourth offense is to vilify scriptures or Vedic knowledge.
SB 2.1.11, Purport:
The first offense is to vilify the great devotees who have preached about the glories of the Lord. The second offense is to see the holy names of the Lord in terms of worldly distinction. The Lord is the proprietor of all the universes, and therefore He may be known in different places by different names, but that does not in any way qualify the fullness of the Lord. Any nomenclature which is meant for the Supreme Lord is as holy as the others because they are all meant for the Lord. Such holy names are as powerful as the Lord, and there is no bar for anyone in any part of the creation to chant and glorify the Lord by the particular name of the Lord as it is locally understood. They are all auspicious, and one should not distinguish such names of the Lord as material commodities. The third offense is to neglect the orders of the authorized ācāryas or spiritual masters. The fourth offense is to vilify scriptures or Vedic knowledge. The fifth offense is to define the holy name of the Lord in terms of one's mundane calculation. The holy name of the Lord is identical with the Lord Himself, and one should understand the holy name of the Lord to be nondifferent from Him.
The fourth offense (śruti-śāstra-nindanam) is to blaspheme Vedic literatures such as the four Vedas and the Purāṇas.
CC Adi 8.24, Purport:
The third offense at the lotus feet of the holy name, which is called guror avajñā, is to consider the spiritual master to be material and therefore to envy his exalted position. The fourth offense (śruti-śāstra-nindanam) is to blaspheme Vedic literatures such as the four Vedas and the Purāṇas. The fifth offense (artha-vādaḥ) is to consider the glories of the holy name to be exaggerations. Similarly, the sixth offense (hari-nāmni kalpanam) is to consider the holy name of the Lord to be imaginary.
Other Books by Srila Prabhupada
Teachings of Lord Caitanya
The fourth offense is to blaspheme Vedic literature and authorized scriptures like the Purāṇas.
Teachings of Lord Caitanya, Chapter 1:
There are ten principal offenses which can be committed against the holy name. The first is to blaspheme the great devotees who have tried to spread the glories of the holy name throughout the world. The holy name of Kṛṣṇa is nondifferent from Kṛṣṇa, and one who attempts to spread the holy names throughout the world is beloved of Him. Kṛṣṇa Himself does not tolerate offenses against His pure devotees. The second offense is to deny that Lord Viṣṇu is the Absolute Truth. There is no difference between His name, quality, form, pastimes and activities, and one who sees a difference is considered an offender. The Lord is Supreme, and no one is equal to or greater than Him. Consequently if one thinks that the Lord's names are nondifferent from the names of demigods, he offends. The Supreme Lord and the demigods should never be considered on the same level.
The third offense is to consider the bona fide spiritual master to be a common man. The fourth offense is to blaspheme Vedic literature and authorized scriptures like the Purāṇas. The fifth offense is to consider the glories attributed to the holy names to be exaggerations. The sixth offense is to concoct perverted theories about the holy name. The seventh offense is to commit sinful activities on the strength of chanting the holy name. It is understood that by chanting the holy names one is free from sinful reactions, but this does not mean that one should act sinfully on the strength of chanting. That is the greatest offense. The eighth offense is to consider that religious rituals, austerity, sacrifices or other forms of renunciation are equal to chanting the holy name. Chanting the holy name is as good as associating with the Supreme Personality of Godhead. Pious activities are only means to approach the Supreme Personality of Godhead, and they can even be performed for some material reason. The ninth offense is to preach the glories of the holy name of God to a faithless person who is not interested in hearing them. The tenth and last offense is to maintain material attachment even after hearing and chanting the holy names of God. The idea is that by chanting the holy name without offense, one can obtain elevation to the liberated platform. On the liberated platform one is freed from all material attachment. Thus if one chants the holy names and still has material attachments, he must be committing some offense.
Scriptures, authority of Vedas, they must be accepted. We should always accept the injunction of the scripture as truth.
Talk, Initiation Lecture, and Ten Offenses Lecture -- Los Angeles, December 1, 1968:
Revatīnandana: "The fourth offense is minimizing the authority of the Vedas."
Prabhupāda: Yes. Scriptures, authority of Vedas, they must be accepted. Just like the other day I was explaining, the Veda says the conchshell is pure although it is a bone of an animal. In other places Veda gives you the injunction that bone of an animal is impure. But it says the conchshell is pure. It can be placed before the Deity, it can be used in the Deity room in His service. Now there may be argument, "Oh, this is a bone of an animal. How is that? Contradiction." No. So one should accept the injunction of the Vedas like that. Whenever it says this is impure, it is impure; when it says it is pure, it is pure. Now if there is any doubt, that should be understood by questioning submissively and with service from the spiritual master. The spiritual master is there. Then? But we should always accept the injunction of the scripture as truth. Just like there is a proverb, "Bible truth," "Biblical truth." Nobody can deny Bible. This should be the attitude. Bible is also part of Vedas. Therefore Vedic injunction should be accepted as it is, without any interpretation. Just like Bhagavad-gītā is Veda. Why Veda? The Supreme Personality of Godhead personally speaking; therefore it is Veda. There is no mistake. One should accept—no interpretation—as it is. Therefore we are presenting Bhagavad-gītā As It Is.