שָׁרַ֣ץ אַרְצָ֣ם צְפַרְדְּעִ֑ים בְּ֝חַדְרֵ֗י מַלְכֵיהֶֽם׃
Their land swarmed with frogs, In the chambers of their kings.
Rashi on Psalms
Their land swarmed with frogs Said Rabbi Johanan: Wherever water would lie, frogs would lie.
שָׁרַ֣ץ אַרְצָ֣ם צְפַרְדְּעִ֑ים בְּ֝חַדְרֵ֗י מַלְכֵיהֶֽם׃
Their land swarmed with frogs, In the chambers of their kings.