I say you are wrong in it’s understanding;
Try Matthew6:24; New International Version;
“No one can serve two masters. Either you will hate the one and love the other, or you will be devoted to the one and despise the other. You cannot serve both God and money.
How many of us serve 2 or more masters? The same can be said of those who follow the Islamic faith & are American Citizens.
I didn't misunderstand, you do. It has nothing to do with serving two masters they serve one and only one, unless they are apostate, which they would never admit.