Firstfruits means in the bible: Considered to be God’s property, offered at great feasts by all the nations and private citizens at other times by Ex. 22:29; 23:19; 34:26. 1. The Lord was to be waved before him on the morrow after the Passover Sabbath Lev. 23:10-14. 2 The offering of two loaves of new wheat flour bread at the Feast of Pentecost ex. 34:22; Lev. 23:15; 17; 3 A thanksgiving for harvest at Feast of Tabernacles or of Ingathering Ex. 23:16; 34:22; Lev. 23:39. Also see Num. 15:19, 21; Deut. 26:2-11. Ex. outlines the rules for private firstfruits offerings. 23:16; Lev. 2:12-16; 19:23-25; 22:14; 23:15-17; Num. 15:19-21; Deut. 18:4; 26:2; 2 Chr. 31:5, 11; Neh. 10:35, 37; 12:44.
(in Bible Dictionary)