One can be jealous of something rightly your own. Burl, if you were married and your husband went out with his buddies every night and weekend you might be rightly jealous of his time. There is a healthy type of jealousy and unhealthy types.
Interestingly Stephen referred to the circumcision of the heart in
Acts 7
51 “You stiff-necked people, uncircumcised in heart and ears, you always resist the Holy Spirit. As your fathers did, so do you. 52 Which of the prophets did your fathers not persecute? And they killed those who announced beforehand the coming of the Righteous One, whom you have now betrayed and murdered, 53 you who received the law as delivered by angels and did not keep it.”
The Stoning of Stephen
54 Now when they heard these things they were enraged, and they ground their teeth at him.