It is possible to have strong spiritual gifts in your life, but be way off-base in the way you use them. It is possible to have spiritual gifts and not understand their correct use. And it's possible when you're not personally familiar with a particular spiritual gift to have no appreciation for it, or even teach that it has passed away.
The Corinthian church was rich in spiritual gifts -- but weak in wisdom. As Paul began this letter, he told the Corinthians, "You do not lack any spiritual gift" (1:7). The church needs teaching. They need perspective from Paul who has had a lot of experience with spiritual gifts -- their use, misuse, and disuse.
Spiritual Gifts and Spirituality (12:1)
"Now about spiritual gifts, brothers, I do not want you to be ignorant." (12:1)
The words "spiritual gifts" translate the Greek word pneumatikos, here, "spiritual things or matters,"418 or, perhaps, "spiritual persons," since he begins by explaining the difference between the evil spirits that motivated pagan prophecy and the Holy Spirit of God.
One of the issues at Corinth is what it means to be "spiritual." Paul has indicated earlier that, despite their protests, they are not spiritual.
"Brothers, I could not address you as spiritual (pneumatikos) but as worldly -- mere infants in Christ." (3:1)
True spirituality, as he contends in chapters 12-14, is motivated by love and seeks to build up the body with spiritual gifts, not motivated by pride with no thought of the needs of the church. Paul begins by giving the Corinthians a basic lesson in discernment.
"2 You know that when you were pagans419, somehow or other you were influenced and led astray to mute idols. 3 Therefore I tell you that no one who is speaking by the Spirit of God says, 'Jesus be cursed,' and no one can say, 'Jesus is Lord,' except by the Holy Spirit." (12:2-3)
Paul is saying that these formerly-pagan Corinthian believers knew something about speaking under the influence of false spirits -- even though the idols themselves had no real existence (8:4; 10:19) and no ability to speak themselves. The Greeks had a long history with prophetic oracles from Delphi, where a priestess under the influence of a spirit (pneuma) would utter predictions.
Paul tells them that a person who prophesies that Jesus is cursed can't be from the true God. And that only a Holy Spirit inspired prophet can prophesy that "Jesus is Lord." This isn't really a test he is proposing. Rather, Paul is affirming the existence of false spirits in prophecy, and calls on these formerly-pagan believers to be discerning, as the Apostle John taught the churches he ministered to (1 John 4:2).
I once pastored in a small town that had its own annual psychic festival -- a very New-Agey kind of place. A number of people there would describe themselves as "spiritual," even though they wouldn't identify themselves as Christ-followers. There are real spiritual powers that are behind false religions -- Paul called them "demons" (10:20-21). Often, people who are involved in this kind of false worship are themselves infected spiritually with these spirits, as was the slave girl in Philippi, who "had a spirit of divination and brought her owners a great deal of money by fortune-telling" (Philippians 16:16-18)