Exodus 35:5
Take from among you an offering to the Lord; everyone who has the impulse in his heart, let him give his offering to the Lord; gold and silver and brass;
Exodus 25:2-7
Say to the children of Israel that they are to make me an offering; from every man who has the impulse in his heart take an offering for me.
Judges 5:9
Come, you rulers of Israel, you who gave yourselves freely among the people: give praise to the Lord.
Mark 12:41-44
And he took a seat by the place where the money was kept, and saw how the people put money into the boxes: and a number who had wealth put in much.
2 Corinthians 8:11-12
Then make the doing of it complete; so that as you had a ready mind, you may give effect to it as you are able.
2 Corinthians 9:7
Let every man do after the purpose of his heart; not giving with grief, or by force: for God takes pleasure in a ready giver.