apare vasudevasya
devakyÄá¹ yÄcito 'bhyagÄt
ajas tvam asya ká¹£emÄya
vadhÄya ca sura-dviá¹£Äm
apare - others; vasudevasya - of Vasudeva; devakyÄm - of DevakÄ«; yÄcitaḥ - being prayed for; abhyagÄt - took birth; ajaḥ - unborn; tvam - You are; asya - of him; ká¹£emÄya - for the good; vadhÄya - for the purpose of killing; ca - and; sura-dviá¹£Äm - of those who are envious of the demigods.
It is also said that Vasudeva and DevakÄ«, in their previous birth as SutapÄ and Pṛśni, underwent a severe type of penance to get the Lord as their son, and as a result of such austerities the Lord appeared as their son. It is already declared in the Bhagavad-gÄ«tÄ that the Lord appears for the welfare of all people of the world and to vanquish the asuras, or the materialistic atheists.