Irony of Life

Church has 6 letters, so do Temple and Mosque
Live has 4 letters, so does Dead
Hate has 4 letters, so does Love
Enemies has 7 letters, so does Friends
Lying has 5 letters, so does Truth
Hurt has 4 letters, so does Heal
Negative has 8 letters, so does Positive
Failure has 7 letters, so does Success
Cry has 3 letters, so does Joy
Anger has 5 letters, so does Happy
Right has 5 letters, so does Wrong
Rich has 4 letters, so does Poor
Fail has 4 letters, so does Pass
Knowledge has 9 letters, so does Ignorance