ado rūpam alaukikam
śriyā juṣṭaṁ catur-bhujam
Devakī was thinking of hiding the Supreme Personality of Godhead and not handing Him over to Kaṁsa as she had all her previous children. Although Vasudeva had promised to hand over every child to Kaṁsa, this time he wanted to break his promise and hide the child somewhere. But because of the Lord’s appearance in this surprising four-armed form, He would be impossible to hide.