When I was a believer, I endorsed this idea too. I commented with things like "love Jehovah more than your mate" or "love Jehovah more than your friends".
It didn't occur to me as I was saying it that Jehovah is an idea. This god concept is an idea that should really pass scrutiny if you're supposed to love it more than anything else.
At best, this means that Jehovah is real and you have to love Jehovah more than the people in your life, no matter the despicable things he is said to have done, condoned and endorsed in his holy writ. You have to love that more than your spouse.
At worst, this means you love a completely made up fallacy more than your supposed best friend.
And in all cases, it's an obvious cult control tactic that isn't so obvious when you're in the fog. Let me tell you, it's a great thing to say that you love your wife/husband/girlfriend/boyfriend more than anyone else in the entire world.