Paul is emphasizing that the gift of prophecy is greater than the gift of speaking in tongues. Alternate translation: "The one who prophesies has a greater gift" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
This means to tell what someone has said in a language to others who do not understand that language. See how this is translated in [1 Corinthians 2:13](../02/12.md).