There is no true jealousability without repentance from sin. Jealousability, as Paul talks about it in Romans 11, belongs with salvation blessings, and salvation begins with repenting.
Repentance is required for true jealousability for at least two reasons: systemic and apologetic.
You cannot try both to keep a favorite infection and pursue a healthy body. Your whole life is connected no matter how much you try to compartmentalize. And while one angle might look jealousable, it can’t be maintained. For that matter, our lives as a church body are connected no matter how much time you spend alone. If you love your sin, defend it, feed it, refuse to turn from it, you are affecting the rest of our health. But also if you confess it, repent from it, there is benefit for us all.
The apologetic reason is because part of the work of jealousability is magnifying God’s blessings, and it shouldn’t surprise you if someone says, “So you think you’re better than me.” You are pointing out what looks like privileges, and they are. But your privilege starts by knowing you aren’t precious. This is what glorifies God not you. You have nothing that you didn’t receive, and everything you did receive isn’t because you are worth it.
You aren’t perfect, but unlike that watching neighbor, you’ve repented, and God promises salvation for those who repent and believe in His Son (Acts 2:38).