Free-will offering
a spontaneous gift (Ex. 35:29), a voluntary sacrifice (Lev.
22:23; Ezra 3:5), as opposed to one in consequence of a vow, or
in expiation of some offence.
Bibliography Information Easton, Matthew George. M.A., D.D., "Biblical Meaning for 'Free-will offering' Eastons Bible Dictionary". bible-history.com - Eastons; 1897.