# General Information:

This continues what the Israelite must say to Yahweh when he gives his tithe to the poor.

# I have not eaten any of it in my mourning

"I have not eaten any of the tithe while I was mourning"

# when I was unclean

"when I was unclean according to the Law" or "when the law says I cannot touch it" 

# I have listened to the voice of Yahweh my God; I have obeyed everything you have commanded me to do

Both statements emphasize that the person has obeyed all of God's commands.