1f056552__Unequally_Yoked_to_the_World____in__the_world__not_yoked_
[Example] Money [“of” the world (yoked)] Earning income that promotes something sinful such as a Internet porn or a money-making “gimmick” you could be unequally yoked to a business system or monetary philosophy that does not glorify God [“in” the world (not yoked)] 
Earning income not specifically doing “Christian” work or selling “Christian” products to believers or unbelievers
Brent Riggs - Designer, Author, Business Man - Question: What Does It Mean to Be Unequally Yoked to the World?
“in” the world (not yoked)