PURPORT

Lord Krishna was also an younger cousin brother of Maharaj Yudhisthir as well as the intimate friend of Arjuna although all the family members of the Pandava know Lord Krishna as the Supreme Personality of Godhead. The Lord although conscious of His Supreme position did always behave in humanly custom and as such He also bowed down before the lying Bhismadeva as if one of the younger brothers of King Yudhisthira.