Luke 15:6

and having come into the house, calls together the friends and neighbors, saying to them, Rejoice with me, because I have found my sheep which was lost.

John 15:11

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

2 Corinthians 8:3

Because I witness, that according to their ability, and beyond their ability they were anxious,

2 Corinthians 8:12

For if there is first a willing mind, it is acceptable according to what one may have, and not according to what he has not.

2 Corinthians 9:7-8

As each one has predetermined in his heart; not of reluctance, or of constraint: for God loves the hilarious giver.

Philippians 4:10

But I greatly rejoice in the Lord, because indeed you have at length revived to think about me; in whatsoever you indeed were thinking, nevertheless you lacked opportunity.

1 Thessalonians 3:6-9

But Timothy, having already come to us from you, and proclaimed to us the good news of your faith and your divine love, and that you always have a good mention of us, longing to see us, as we do to see you;

Philippians 2:15-17

in order that you may be blameless and pure, the children of God, irreproachable, amid a crooked and perverse generation, among whom you shine as lights in the world,

Philippians 4:1

So, my beloved and longed for brethren, my joy and my crown, stand fast 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.

Bible References

They offered

2 Corinthians 8:3
Because I witness, that according to their ability, and beyond their ability they were anxious,
2 Corinthians 9:7
As each one has predetermined in his heart; not of reluctance, or of constraint: for God loves the hilarious giver.

David

Luke 15:6
and having come into the house, calls together the friends and neighbors, saying to them, Rejoice with me, because I have found my sheep which was lost.
John 15:11
I have spoken these things to you, that my joy may be in you, and that your joy may be full.
Philippians 2:15
in order that you may be blameless and pure, the children of God, irreproachable, amid a crooked and perverse generation, among whom you shine as lights in the world,
Philippians 4:1
So, my beloved and longed for brethren, my joy and my crown, stand fast in the Lord, beloved.
1 Thessalonians 3:6
But Timothy, having already come to us from you, and proclaimed to us the good news of your faith and your divine love, and that you always have a good mention of us, longing to see us, as we do to see you;