"we were bought for a price".

Language of "stewards" "talents" "bought for a price" "you're not your own"....all of these passages point to the fact that God entrusts us to take care of His creation, He expects us to use it to do His will. 

If you're looking for the word "loan" you are adopting a "fundamentalist" "rigorist" approach to reading Scripture...and you must be a disappointed Catholic. 

Maybe one of the more fundamentalist protestant denominations would be a better fit. 

The Catholic Church looks at the words of scripture....but also the meaning...and the embedded intention, drawing all together for a deeper and more connected interpretation.  

I don't recommend your fundamentalist approach..it leads to unpeace and confusion.