Let us not walk like those who are envious, but like those who walk in the day. (Romans 13:13).
Jealousy leads a person into many problems. We see clearly. Jealousy causes men to act against man, and many horrors can be seen from it. But can a Christian be jealous? No. He shouldn't be like that.
Jealousy causes harm to oneself, and one's heart is affected and hardened by it. He grieves God. Not only that, but continued jealousy leads to more sin. Cain was jealous of Abel. Cain didn't stop there, it took him to the point where he became a murderer.
Jealousy (Proverbs 14:30) There is no health in the heart of a jealous person, let us be happy with what God has given us, look to God and walk straightly. Let's be content inside. It will be a blessing to us. Amen.