2 Corinthians 9:7

Let every one give as he has determined before hand, not grudgingly or under compulsion; for God loves 'a cheerful giver.'

2 Corinthians 8:11-12

And now I want you to complete the work, so that its completion may correspond with your willing readiness--in proportion, of course, to your means.

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, where there is willingness, a man's gift is valued by its comparison with what he has, and not with what he has not.
2 Corinthians 9:7
Let every one give as he has determined before hand, not grudgingly or under compulsion; for God loves 'a cheerful giver.'