'Willingly' in the Bible

even gold for things of gold, and silver for those of silver, and for all the work by the hand of artificers; and who is he that is offering willingly to consecrate his hand to-day to Jehovah?'

And the heads of the fathers, and the heads of the tribes of Israel, and the heads of the thousands, and of the hundreds, even to the heads of the work of the king, offer willingly.

And the people rejoice because of their offering willingly, for with a perfect heart they have offered willingly to Jehovah; and also David the king hath rejoiced -- great joy.

yea, because, who am I, and who are my people, that we retain power to offer thus willingly? but of Thee is the whole, and out of Thy hand we have given to Thee;

'And I have known, my God, that Thou art trying the heart, and uprightness dost desire; I, in the uprightness of my heart, have willingly offered all these: and now, Thy people who are found here I have seen with joy to offer willingly to Thee.