1 Corinthians 9:17

If indeed I do this willingly, I have a reward; but if unwillingly, yet a dispensation is intrusted to me.

2 Corinthians 8:12

For if there be first a ready mind, a man is accepted, according to what he hath, not according to what he hath not.

2 Corinthians 9:7

Let every man do as he chuseth in his heart, not grudgingly, or of necessity: for God loveth a chearful giver.

Philippians 2:13

For it is God that worketh in you according to his good pleasure, both to will and to do.

Revelation 16:5-6

And I heard the angel of the waters saying, Righteous art thou, who art, and who wast, the Gracious one, because thou hast judged thus.

Revelation 18:20

Rejoice over her, thou heaven, and ye saints, and apostles, and prophets; for God hath avenged you on her.

Revelation 19:2

For true and righteous are his judgments: for he hath judged the great whore, who corrupted the earth with her fornication, and hath 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, Righteous art thou, who art, and who wast, the Gracious one, because thou hast judged thus.
Revelation 18:20
Rejoice over her, thou heaven, and ye saints, and apostles, and prophets; for God hath avenged you on her.
Revelation 19:2
For true and righteous are his judgments: for he hath judged the great whore, who corrupted the earth with her fornication, and hath avenged the blood of his servants at her hand,

When

1 Corinthians 9:17
If indeed I do this willingly, I have a reward; but if unwillingly, yet a dispensation is intrusted to me.
2 Corinthians 8:12
For if there be first a ready mind, a man is accepted, according to what he hath, not according to what he hath not.
2 Corinthians 9:7
Let every man do as he chuseth in his heart, not grudgingly, or of necessity: for God loveth a chearful giver.
Philippians 2:13
For it is God that worketh in you according to his good pleasure, both to will and to do.
Philemon 1:14
But I would do nothing without thy consent; that thy good deed might not be, as it were, by constraint, but willingly.