Sometimes I'm thinking God made me special here on purpose
So all the while 'til I'm gone make my words important so
Scott is saying that he has been made special by god to elaborate his experiences to his audience.
God created him different from everyone else by giving him the gift of music, which he wants to make until he dies. When he’s gone, his words will become even more important to those who listened to him.
To help improve the meaning of these lyrics, visit “The Prayer” by Kid Cudi Lyrics and leave a comment on the lyrics box