Ezra 1:4

1:4 Anyone who survives in any of those places where he is a resident foreigner must be helped by his neighbors with silver, gold, equipment, and animals, along with voluntary offerings for the temple of God which is in Jerusalem.’”

Ezra 2:68

2:68 When they came to the Lord’s temple in Jerusalem, some of the family leaders offered voluntary offerings for the temple of God in order to rebuild it on its site.

Ezra 8:28

8:28 Then I said to them, “You are holy to the Lord, just as these vessels are holy. The silver and the gold are a voluntary offering to the Lord, the God of your fathers.