Srimad Bhagavatam Canto 10, Chapter 84, Text 63

SB 10.84.63

prag akalpac ca kusalam
 bhratar vo nacarama hi
adhuna sri-madandhaksa
 na pasyamah purah satah
 
Translation: 
 
Previously, dear brother, we did nothing to benefit you because we were unable to, yet even now that you are present before us, our eyes are so blinded by the intoxication of material good fortune that we continue to ignore you.
 
Purport: 
 
While living under the tyranny of Kamsa, Vasudeva was unable to do anything to help Nanda and his subjects defend themselves against the many demons sent from Mathura to kill Krsna and Balarama.
Srimad Bhagavatam Canto 10, Chapter 84, Text 62
Srimad Bhagavatam Canto 10, Chapter 84, Text 64