My church is currently preaching through 1 Corinthians. We just finished looking at the manifestations of the Spirit otherwise known as the gifts of the Spirit. If you are not familiar with what Im speaking about read 1 Corinthians 12-14.
One of these gifts is prophecy. Now prophecy is simply a message that is divinely inspired by the Holy Spirit for you to share with someone that is to encourage them, comfort them and build them up.