Matthew 12:34

You brood of vipers, how can you speak good when you are evil? For the mouth utters what the heart is full of.

2 Corinthians 8:12

If only one is ready to give, according to his means, it is acceptable; he is not asked to give what he has not got.

2 Corinthians 9:7

Everyone is to give what he has made up his mind to give; there is to be no grudging or compulsion about it, for God loves the giver who gives cheerfully.

Treasury of Scripture Knowledge

Summary

And they came, every one whose heart stirred him up, and every one whom his spirit made willing, and they brought the LORD'S offering to the work of the tabernacle of the congregation, and for all his service, and for the holy garments.

Bible References

General references

Matthew 12:34
You brood of vipers, how can you speak good when you are evil? For the mouth utters what the heart is full of.
2 Corinthians 8:12
If only one is ready to give, according to his means, it is acceptable; he is not asked to give what he has not got.
2 Corinthians 9:7
Everyone is to give what he has made up his mind to give; there is to be no grudging or compulsion about it, for God loves the giver who gives cheerfully.