While not all Christians are called ‘prophets’ (1 Cor 12:29), all are (potentially, at least) engaged in prophetic ministry.

So argue Fee and Stevens (The Complete Handbook of Everyday Christianity):

‘Outside of Paul’s letters prophecy is mentioned as a crucial endowment of the Day of Pentecost by which Spirit-ministry has been universalized as proof that Joel’s prophecy has been fulfilled (Joel 2:28-32; Acts 2:17-21). Thus prophecy in this present age of the Spirit and these “last days” (Acts 2:17) is a potential ministry for everyone since the Spirit has been poured out “on all people . . . both men and women” (Acts 2:17-18).

‘Prophecy is the charisma most often mentioned in the Pauline letters (Romans 12:6; 1 Cor. 11:4-5; 1 Cor. 12-14; Ephes. 2:20; Ephes. 3:5; Ephes. 4:11; 1 Thes. 5:20; 1 Tim. 1:18; 1 Tim. 4:14).

‘In Paul such speech consisted either of spontaneous, intelligible messages, orally delivered in the gathered assembly and intended for the edification or encouragement of the people, or of “revelation” of some kind (Galatians 2:2), which at times could expose the hearts of unbelievers and lead them to repentance (1 Cor. 14:24-25). Those who prophesied were clearly understood to be in control (see 1 Cor. 14:29-33).

Although some people are called prophets, the implication of 1 Cor. 14:24-25, 30-31 is that the gift is available—at least potentially—to all.’

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