'Willingness' in the Bible

So then God’s choice is not dependent on human will, nor on human effort [the totality of human striving], but on God who shows mercy [to whomever He chooses—it is His sovereign gift].

For, assuming the earnest willingness, the gift is acceptable according to whatever a man has, and not according to what he has not.

for I know your eagerness [to promote this cause], and I have [proudly] boasted to the people of Macedonia about it, telling them that Achaia has been prepared since last year [for this contribution], and your enthusiasm has inspired the majority of them [to respond].

and apart from thy mind I willed to do nothing, that as of necessity thy good deed may not be, but of willingness,