What does Psalm 79 teach about God's jealousy?

In Psalm 79, God's jealousy is depicted as a righteous response to His people's spiritual adultery, akin to a spouse being wronged by infidelity. The psalmist acknowledges the sin of the people that provoked God's anger, recognizing that turning to any other gods or trusting in anything but the Lord incites His jealousy. This jealousy stems from God's desire for His people to worship Him alone and signifies His unyielding commitment to His honor and glory. The acknowledgment of guilt in spiritual adultery reminds believers of the seriousness of idolatry and the consequences of forsaking the true God.