# that man never bothered to show any covenant faithfulness

"that man never did anything to show that he was faithful to his covenant with people" or "that man nevered bothered to be kind to people" 

# the oppressed, the needy

"oppressed people, needy people"

# the brokenhearted

"brokenheared people" or "people who have lost hope" 

# to death

"until they died." This means that he harassed them until they died.