Srimad Bhagavatam Canto 08, Chapter 22, Text 14

SB 8.22.14

tasmai balir varuna-pasa-yantritah
 samarhanam nopajahara purvavat
nanama murdhnasru-vilola-locanah
 sa-vrida-nicina-mukho babhuva ha
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Being bound by the ropes of Varuna, Bali Maharaja could not offer befitting respect to Prahlada Maharaja as he had before. Rather, he simply offered respectful obeisances with his head, his eyes being inundated with tears and his face lowered in shame.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Since Bali Maharaja had been arrested by Lord Vamanadeva, he was certainly to be considered an offender. Bali Maharaja seriously felt that he was an offender to the Supreme Personality of Godhead. Certainly Prahlada Maharaja would not like this. Therefore Bali Maharaja was ashamed and hung his head.
Srimad Bhagavatam Canto 08, Chapter 22, Text 13
Srimad Bhagavatam Canto 08, Chapter 22, Text 15