PURPORT

The words parah puman amsena signify that Krsna is the original Supreme Personality of Godhead. This is the verdict of the sastra (krsnas tu bhagavan svayam). Thus the demigods assured Devaki, "Your son is the Supreme Personality of Godhead, and He is appearing with Baladeva, His plenary portion. He will give you all protection and kill Kamsa, who has decided to continue his enmity toward the Lord and thus be killed by Him."