The Torah, “Exodus” (Ki Tissa), 34:13-34:14: But you shall demolish their altars, shatter their monuments, and cut down their sacred trees. For you shall not prostrate yourself before another god, because the Lord, Whose Name is “Jealous One,” is a jealous God.
If he prefers properties other than full connection to love and bestowal, he is considered a traitor, and so the Creator is jealous when a person betrays Him.
But it is all an allegory about a person who should experience and feel this. The Torah speaks about spiritual issues using corporeal language. It is because we work as if to delight the Creator, and so expressions like “delight” and “jealous,” etc., are used here.
From KabTV’s “Secrets of the Eternal Book” 9/16/13