'Power' in the Bible

Now since the children have flesh and blood in common, Jesus also shared in these, so that through His death He might destroy the one holding the power of death—that is, the Devil—

who did not become a priest based on a legal command concerning physical descent but based on the power of an indestructible life.

By faith even Sarah herself, when she was unable to have children, received power to conceive offspring, even though she was past the age, since she considered that the One who had promised was faithful.