Translation help? "God's got me in the work."

I know that in the reality-based world it means that one is having manic delusions, but in the world of Evangelical Christianity?

I don't get it exactly. What does that mean?

I'm still trying to absorb the impact of "Maranatha, Come Lord Jesus" and how I can continue to eat their delicious organic Peanut Butter. Help a post-Catholic out!