1 Corinthians 9:17

For if I do this willingly, I have a reward; but if unwillingly, an apostolic stewardship has been intrusted to me.

2 Corinthians 8:12

For if there is a readiness of mind, one is accepted according to what he has, not according to what he has not.

2 Corinthians 9:7

Let each one give, as he purposes in his heart; not with grief, nor from necessity: for God loves a cheerful giver.

Philippians 2:13

for it is God, who, of his good pleasure, works in you both the will and the power to perform.

Revelation 16:5-6

And I heard the angel of the waters, saying: Just art thou, who art and who wast, the Holy One, because thou hast thus judged.

Revelation 18:20

Rejoice over her, O heaven, and you saints and apostles and prophets: for God has avenged you on her.

Revelation 19:2

for true and righteous are his judgments, for he has judged the great harlot that corrupted the earth with her lewdness; and he has avenged the blood of his servants at her hand.

Treasury of Scripture Knowledge

Summary

Praise ye the LORD for the avenging of Israel, when the people willingly offered themselves.

Bible References

For the avenging

Revelation 16:5
And I heard the angel of the waters, saying: Just art thou, who art and who wast, the Holy One, because thou hast thus judged.
Revelation 18:20
Rejoice over her, O heaven, and you saints and apostles and prophets: for God has avenged you on her.
Revelation 19:2
for true and righteous are his judgments, for he has judged the great harlot that corrupted the earth with her lewdness; and he has avenged the blood of his servants at her hand.

When

1 Corinthians 9:17
For if I do this willingly, I have a reward; but if unwillingly, an apostolic stewardship has been intrusted to me.
2 Corinthians 8:12
For if there is a readiness of mind, one is accepted according to what he has, not according to what he has not.
2 Corinthians 9:7
Let each one give, as he purposes in his heart; not with grief, nor from necessity: for God loves a cheerful giver.
Philippians 2:13
for it is God, who, of his good pleasure, works in you both the will and the power to perform.
Philemon 1:14
but, without your consent, I was not willing to do any thing, that your good deed might not be as a matter of necessity, but one of free-will.