1 Corinthians 9:17 For if I do this voluntarily, I have a reward; but if not of my own will, I am entrusted with an administration. (DBY NAS NIV)
Deuteronomy 23:23 That which is gone out of your lips you shall observe and do; according as you have vowed to Yahweh your God, a freewill offering, which you have promised with your mouth. (See NAS RSV)
Judges 21:22 It shall be, when their fathers or their brothers come to complain to us, that we will say to them,'Grant them graciously to us, because we didn't take for each man his wife in battle, neither did you give them to them, otherwise you would now be guilty.'" (See NAS)
2 Kings 12:4 Jehoash said to the priests, "All the money of the holy things that is brought into the house of Yahweh, in current money, the money of the persons for whom each man is rated, and all the money that it comes into any man's heart to bring into the house of Yahweh, (See NIV)
2 Chronicles 35:8 His princes gave for a freewill offering to the people, to the priests, and to the Levites. Hilkiah and Zechariah and Jehiel, the rulers of the house of God, gave to the priests for the Passover offerings two thousand and six hundred small livestock, and three hundred head of cattle. (See NIV)
Ezekiel 46:12 Now when the prince shall prepare a voluntary burnt offering or peace offerings voluntarily unto the LORD, one shall then open him the gate that looketh toward the east, and he shall prepare his burnt offering and his peace offerings, as he did on the sabbath day: then he shall go forth; and after his going forth one shall shut the gate. (KJV WBS)