1 Chronicles 29:9

And the people rejoice because of their offering willingly, for with a perfect heart they have offered willingly to Jehovah; and also David the king hath rejoiced -- great joy.

1 Kings 8:61

and your heart hath been perfect with Jehovah our God, to walk in His statutes, and to keep His commands, as at this day.'

Deuteronomy 16:10-11

and thou hast made the feast of weeks to Jehovah thy God, a tribute of a free-will offering of thy hand, which thou dost give, as Jehovah thy God doth bless thee.

Judges 5:9

My heart is to the lawgivers of Israel, Who are offering themselves willingly among the people, Bless ye Jehovah!

1 Chronicles 29:17

'And I have known, my God, that Thou art trying the heart, and uprightness dost desire; I, in the uprightness of my heart, have willingly offered all these: and now, Thy people who are found here I have seen with joy to offer willingly to Thee.

Psalm 110:3

Thy people are free-will gifts in the day of Thy strength, in the honours of holiness, From the womb, from the morning, Thou hast the dew of thy youth.

Proverbs 23:15-16

My son, if thy heart hath been wise, My heart rejoiceth, even mine,

Luke 15:6

and having come to the house, he doth call together the friends and the neighbours, saying to them, Rejoice with me, because I found my sheep -- the lost one.

John 15:11

these things I have spoken to you, that my joy in you may remain, and your joy may be full.

2 Corinthians 8:3

because, according to their power, I testify, and above their power, they were willing of themselves,

2 Corinthians 8:12

for if the willing mind is present, according to that which any one may have it is well-accepted, not according to that which he hath not;

2 Corinthians 9:7-8

each one, according as he doth purpose in heart, not out of sorrow or out of necessity, for a cheerful giver doth God love,

Philippians 4:10

And I rejoiced in the Lord greatly, that now at length ye flourished again in caring for me, for which also ye were caring, and lacked opportunity;

1 Thessalonians 3:6-9

And now Timotheus having come unto us from you, and having declared good news to us of your faith and love, and that ye have a good remembrance of us always, desiring much to see us, as we also to see you,

Philippians 2:15-17

that ye may become blameless and harmless, children of God, unblemished in the midst of a generation crooked and perverse, among whom ye do appear as luminaries in the world,

Philippians 4:1

So then, my brethren, beloved and longed for, my joy and crown, so stand ye in the Lord, beloved.

Treasury of Scripture Knowledge

Summary

Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the LORD: and David the king also rejoiced with great joy.

General references

Bible References

They offered

Deuteronomy 16:10
and thou hast made the feast of weeks to Jehovah thy God, a tribute of a free-will offering of thy hand, which thou dost give, as Jehovah thy God doth bless thee.
Judges 5:9
My heart is to the lawgivers of Israel, Who are offering themselves willingly among the people, Bless ye Jehovah!
Psalm 110:3
Thy people are free-will gifts in the day of Thy strength, in the honours of holiness, From the womb, from the morning, Thou hast the dew of thy youth.
2 Corinthians 8:3
because, according to their power, I testify, and above their power, they were willing of themselves,
2 Corinthians 9:7
each one, according as he doth purpose in heart, not out of sorrow or out of necessity, for a cheerful giver doth God love,

Perfect heart

1 Chronicles 29:17
'And I have known, my God, that Thou art trying the heart, and uprightness dost desire; I, in the uprightness of my heart, have willingly offered all these: and now, Thy people who are found here I have seen with joy to offer willingly to Thee.
1 Kings 8:61
and your heart hath been perfect with Jehovah our God, to walk in His statutes, and to keep His commands, as at this day.'

David

Proverbs 23:15
My son, if thy heart hath been wise, My heart rejoiceth, even mine,
Luke 15:6
and having come to the house, he doth call together the friends and the neighbours, saying to them, Rejoice with me, because I found my sheep -- the lost one.
John 15:11
these things I have spoken to you, that my joy in you may remain, and your joy may be full.
Philippians 2:15
that ye may become blameless and harmless, children of God, unblemished in the midst of a generation crooked and perverse, among whom ye do appear as luminaries in the world,
Philippians 4:1
So then, my brethren, beloved and longed for, my joy and crown, so stand ye in the Lord, beloved.
1 Thessalonians 3:6
And now Timotheus having come unto us from you, and having declared good news to us of your faith and love, and that ye have a good remembrance of us always, desiring much to see us, as we also to see you,

General references

Exodus 35:21
and they come in -- every man whom his heart hath lifted up, and every one whom his spirit hath made willing -- they have brought in the heave-offering of Jehovah for the work of the tent of meeting, and for all its service, and for the holy garments.