20 Those officials of Pharaoh who feared the word of the LORD hurried to bring their slaves and their livestock inside.

Read Exodus 9:20 Using Other Translations

He that feared the word of the LORD among the servants of Pharaoh made his servants and his cattle flee into the houses:
Then whoever feared the word of the LORD among the servants of Pharaoh hurried his slaves and his livestock into the houses,
Some of Pharaoh’s officials were afraid because of what the LORD had said. They quickly brought their servants and livestock in from the fields.