Exodus 35:5
"Take ye from among you an offering unto the LORD: whosoever is of a willing heart, let him bring it, an offering of the LORD; gold, and silver, and brass,"
Cross References (ranked by relevance)
2 Corinthians 9:7
Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver.
Psalm 110:3
Thy people shall be willing in the day of thy power, in the beauties of holiness from the womb of the morning: thou hast the dew of thy youth.
Judges 5:9
My heart is toward the governors of Israel, that offered themselves willingly among the people. Bless ye the LORD.