It is one of His names."For you shall worship no other god, for the Lord, whose name is Jealous, is a jealous God (Exodus 34:14).God went by many names. Jealous was one of them. He said so. I'm pretty sure He even explained why.Yahweh was a tribal war God left over from the Canaanites. the god of the OT says his name is Jealous.
You believed lies. God told Moses his name is YHWH(Jehovah)
Jealous is not a name. Its a state of psyche. Elohim is not a name. It is a Hebrew word that carries various meanings, but in the Hebrew language Elohim = never plural as gods for the true living God-YHWH(Jehovah)0
The Israelites from Moses on up were taught, served and worshipped a single being God named-YHWH(Jehovah). Taught to Jesus his first 30 years--never refuting that God but teaching that God- John 17:1-6,26-- John 20:17, Rev 3:12-- It takes believing Jesus.
It has other meaning. It is not his name.
I guess you missed that when your teachers were teaching you every utterance of God from a Book that was compiled by the whore of Babylon.