2 Corinthians 8:3-4
Because I witness, that according to their ability, and beyond their ability they were anxious,
2 Corinthians 8:12
For if there is first a willing mind, it is acceptable according to what one may have, and not according to what he has not.
2 Corinthians 8:17
because he indeed accepted our exhortation; and being the more enthusiastic, came unto you of his own accord.
2 Corinthians 9:5
Therefore I considered it necessary to exhort the brethren, that they may come to you beforehand, and perfect your preannounced benefaction, that it may be ready, as a benefaction, not as a stingy contribution.