Divulgator

Good journalists can be important divulgators of knowledge

Source: wiktionary

In the tongue wherein Christ spake these words, namely the Syriac, the fittest word that He could find to signify the devil’s name, is a word that signifies divulgator

Source: wiktionary

In short, when his total activity is weighed, his role as a literary divulgator and mentor must be taken into consideration.

Source: wiktionary