Exodus 25:2
"Tell the Israelites to bring Me an offering. You are to receive My offering from every man whose heart compels him.

2 Corinthians 8:3
For I testify that they gave according to their ability and even beyond it. Of their own accord,

2 Corinthians 8:12
For if the eagerness is there, the gift is acceptable according to what one has, not according to what he does not have.

2 Corinthians 8:19
More than that, this brother was chosen by the churches to accompany us with the offering--the gracious gift we administer to honor the Lord Himself and to show our eagerness to help.

2 Corinthians 9:2
For I know your eagerness to help, and I have been boasting to the Macedonians that since last year you in Achaia were prepared to give. And your zeal has stirred most of them to do likewise.