Ex 20:5, Ex 34:14, Zech 8:2
When we love the world, the Holy Spirit within us is jealous of what we love. Because the Holy Spirit loves us. (James 4:4-5)
James 4:4 Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God. 5 Do ye think that the scripture saith in vain, The spirit that dwelleth in us lusteth to envy?
God is a jealous God. We must not love anything other than God. (Ex 20:5, Ex 34:14, Zech 8:2)
Ex 20:5 Thou shalt not bow down thyself to them, nor serve them: for I the Lord thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
Ex 34:14 For thou shalt worship no other god: for the Lord, whose name is Jealous, is a jealous God:
Zech 8:2 Thus saith the Lord of hosts; I was jealous for Zion with great jealousy, and I was jealous for her with great fury.