Yep HE gave them the power xzins....it was not self generated
Jhn 1:11 He came unto his own, and his own received him not.
Jhn 1:12 But as many as received him, to them gave he power to become the sons of God, [even] to them that believe on his name:
Jhn 1:13 Which were born, not of blood, nor of the will of the flesh,
You do need to finish your quotes xzins
In the above verse, believing PRECEDES becoming a son of God.
Therefore, believing precedes regeneration.