Verses with the word prophesying in the New Testament (3 verses):

1 Corinthians 11:4
Every man praying or prophesying, having his head covered, dishonoureth his head.

1 Corinthians 14:6
Now, brethren, if I come unto you speaking with tongues, what shall I profit you, except I shall speak to you either by revelation, or by knowledge, or by prophesying, or by doctrine?

1 Corinthians 14:22
Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe.