# ask Yahweh's will for me

"Ask Yahweh what he wants me to do". The men are to go to the prophetess of Yahweh. (2 Chronicles 34:22)   

# because of the words

"concerning the words"

# the words of the book that has been found

"the laws in the book that Hilkiah has found"

# For it is great, the anger of Yahweh ... It is great

"For Yahweh's anger towards us is great, like water that could totally wash us away" 

# all that was written in it

"all that is written in it" or "all that is in this book"