“Do not worship any other god, for the LORD, whose name is Jealous, is a jealous God.” (Exodus 34:14)
Jealously is the intense demand for exclusive possession and/or devotion. In the original language of the Old Testament (Hebrew), the word for “jealous” ranges in meaning from “be zealous for” to “be envious of.” Human jealously is not the same as God’s jealously. Our envy is focused on things that do not belong to us. As the creator of the universe, God’s jealously is for what is already his.
Finite language often falls short in it’s attempt to explain an infinite God. So it can be difficult to see God as jealous. However significance is clear: God is not indifferent about us, he loves us with an intensity that can be described as jealously.
God is calling us to worship him undiluted loyalty and faithfulness.