1. Exposition

Why would Jael have to cover him again?

Judges 4:19 (ESV)

19 And he said to her, “Please give me a little water to drink, for I am thirsty.” So she opened a skin of milk and gave him a drink and covered him.

Though she had already covered him when he first entered the tent, he would have had to arise in the meantime to drink. So she needed to cover him once again.