This phrase comes out of my mouth way too often: "It's not fair!"
It's not fair that other people can eat whatever they want and never gain a pound. It's not fair that he can lose weight by just cutting out one cookie. It's not fair that I can exercise HARD for an hour every day and still not lose much weight.
An ugly and unflattering cycle of self-pity and wallowing.
Sometimes I justify my choices by this means. The "it's not fair..." excuse for giving in to temptation. I think Satan uses this method gleefully to trap us.
I look at my skinny friends and wish I could trade places with them.
But here's the thing I realized lately. No matter how perfect someone else's life looks, we all have things that we have to learn to give up and sacrifice. We all have "idols" that get in our way and tempt us.
James 1:3-4 "You know that the testing of your faith produces perseverance. Let perseverance finish its work so that you may be mature and complete, not lacking anything."
And, as Lysa TerKeurst puts it in Made to Crave:
"...This truth should be the cry of our souls instead of Satan's lie that 'it's not fair.' Our taste buds make such empty claims to satisfy us, but only persevering with God will make us truly full, complete, not lacking anything." page 106