2 Chronicles 17:16

and next to him Amasiah the son of Zichri, who volunteered for the Lord, and with him 200,000 valiant warriors;

Judges 5:9

“My heart goes out to the commanders of Israel,
The volunteers among the people;
Bless the Lord!

Judges 5:2

That the leaders led in Israel,
That the people volunteered,
Bless the Lord!

1 Chronicles 29:9

Then the people rejoiced because they had offered so willingly, for they made their offering to the Lord with a whole heart, and King David also rejoiced greatly.

1 Chronicles 29:14

“But who am I and who are my people that we should be able to offer as generously as this? For all things come from You, and from Your hand we have given You.

1 Chronicles 29:17

Since I know, O my God, that You try the heart and delight in uprightness, I, in the integrity of my heart, have willingly offered all these things; so now with joy I have seen Your people, who are present here, make their offerings willingly to You.

Psalm 110:3

Your people will volunteer freely in the day of Your power;
In holy array, from the womb of the dawn,
Your youth are to You as the dew.

2 Corinthians 8:3-5

For I testify that according to their ability, and beyond their ability, they gave of their own accord,

2 Corinthians 8:12

For if the readiness is present, it is acceptable according to what a person has, not according to what he does not have.

Treasury of Scripture Knowledge

Summary

And next him was Amasiah the son of Zichri, who willingly offered himself unto the LORD; and with him two hundred thousand mighty men of valour.

General references

Bible References

Willingly

Judges 5:2
That the leaders led in Israel,
That the people volunteered,
Bless the Lord!
1 Chronicles 29:9
Then the people rejoiced because they had offered so willingly, for they made their offering to the Lord with a whole heart, and King David also rejoiced greatly.
Psalm 110:3
Your people will volunteer freely in the day of Your power;
In holy array, from the womb of the dawn,
Your youth are to You as the dew.
2 Corinthians 8:3
For I testify that according to their ability, and beyond their ability, they gave of their own accord,

General references

Genesis 13:16
I will make your descendants as the dust of the earth, so that if anyone can number the dust of the earth, then your descendants can also be numbered.
Numbers 1:26
Of the sons of Judah, their genealogical registration by their families, by their fathers’ households, according to the number of names, from twenty years old and upward, whoever was able to go out to war,