Job 31:28-30

Amplified Bible

²⁸ 
This also would have been [a heinous] sin calling for judgment,
For I would have denied God above.^(A)

²⁹ 
“Have I rejoiced at the destruction of the enemy [who hated me],
Or exulted [in malicious triumph] when evil overtook him?
³⁰ 
“No, I have not allowed my mouth to sin
By cursing my enemy and asking for his life.