2 Corinthians 9:7

As each one has predetermined in his heart; not of reluctance, or of constraint: for God loves the hilarious giver.

2 Corinthians 8:11-12

but now indeed complete the work; in order that as there was a promptitude of willing, there shall also be a completion out of your ability.

Treasury of Scripture Knowledge

Summary

Speak unto the children of Israel, that they bring me an offering: of every man that giveth it willingly with his heart ye shall take my offering.

Bible References

Willingly

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 9:7
As each one has predetermined in his heart; not of reluctance, or of constraint: for God loves the hilarious giver.