Contradiction with 1 Corinthians 2:14
This verse states that the natural man cannot receive the things of the Spirit of God, which may contradict the notion in 2 Corinthians 3:8 about the glory of the ministry of the Spirit suggesting broader accessibility or acceptance.
1 Corinthians 2:14: But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned.
Contradiction with Romans 8:7
This verse says that the carnal mind is enmity against God, potentially contradicting the idea of glorious acceptance and presence of the Spirit noted in 2 Corinthians 3:8.
Romans 8:7: Because the carnal mind [is] enmity against God: for it is not subject to the law of God, neither indeed can be. [the carnal...: Gr. the minding of the flesh]
Contradiction with Galatians 5:17
This verse mentions the flesh lusting against the Spirit, contradicting the continuous glory and freedom associated with the Spirit in 2 Corinthians 3:8.
Galatians 5:17: For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would.
Contradiction with 2 Peter 3:16
Here, some teachings of Paul are described as hard to understand and are twisted, which might contradict the assumed clarity and glory of the Spirit's ministry presented in 2 Corinthians 3:8.
2 Peter 3:16: As also in all [his] epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as [they do] also the other scriptures, unto their own destruction.