One core assignment of ministers of the gospel is teaching.
The interpreter is a teacher of the word.
He dissects and analysis the word
He is a painter of pictures from scriptures.
He simplifies the word by breaking it down for ease of assimilation by his hearers. II Cor.11:3
He gives sense to scriptures and imparts understanding. Neh.8:7,8
He explains the word with clarity to His audience.
He points to each believer His rights in redemption. Job.33:23
He serves as an agent of enlightenment to those in darkness (ignorance).
He imparts knowledge that damages ignorance.
He uses revelation to stir up revolution. Lk.23:5