Dictionary
First-fruits
The first-fruits of the ground were offered unto God just as the first-born of man and animals. The law required, (1.) That on the morrow after the Passover Sabbath a sheaf of new corn should be waved by the priest before the altar (Lev. 23:5, 6, 10, 12; 2:12). (2.) That at the feast of Pentecost two loaves of leavened bread, made from the new flour, were to be waved in like manner (Lev. 23:15, 17; Num. 28:26). (3.) The feast of Tabernacles was an acknowledgement that the fruits of the harvest were from the Lord (Ex. 23:16; 34:22). (4.) Every individual, besides, was required to consecrate to God a portion of the first-fruits of the land (Ex. 22:29; 23:19; 34:26; Num. 15:20, 21). (5.) The law enjoined that no fruit was to be gathered from newly-planted fruit-trees for the first three years, and that the first-fruits of the fourth year were to be consecrated to the Lord (Lev. 19:23-25). Jeremiah (2:3) alludes to the ordinance of "first-fruits," and hence he must have been acquainted with the books of Exodus, Leviticus, and Numbers, where the laws regarding it are recorded.
Dictionary
Lamb
(1.) Heb. kebes, a male lamb from the first to the third year. Offered daily at the morning and the evening sacrifice (Ex. 29:38-42), on the Sabbath day (Num. 28:9), at the feast of the New Moon (28:11), of Trumpets (29:2), of Tabernacles (13-40), of Pentecost (Lev. 23:18-20), and of the Passover (Ex. 12:5), and on many other occasions (1 Chr. 29:21; 2 Chr. 29:21; Lev. 9:3; 14:10-25). (2.) Heb. taleh, a young sucking lamb (1 Sam. 7:9; Isa. 65:25). In the symbolical language of Scripture the lamb is the type of meekness and innocence (Isa. 11:6; 65:25; Luke 10:3; John 21:15). The lamb was a symbol of Christ (Gen. 4:4; Ex. 12:3; 29:38; Isa. 16:1; 53:7; John 1:36; Rev. 13:8). Christ is called the Lamb of God (John 1:29, 36), as the great sacrifice of which the former sacrifices were only types (Num. 6:12; Lev. 14:12-17; Isa. 53:7; 1 Cor. 5:7).
Dictionary
Wave offerings
Parts of peace-offerings were so called, because they were waved by the priests (Ex. 29:24, 26, 27; Lev. 7:20-34; 8:27; 9:21; 10:14, 15, etc.), in token of a solemn special presentation to God. They then became the property of the priests. The first-fruits, a sheaf of barley, offered at the feast of Pentecost (Lev. 23:17-20), and wheat-bread, the first-fruits of the second harvest, offered at the Passover (10-14), were wave-offerings.