Burnt offering: translation
Hebrew olah; i.e., "ascending," the whole being consumed by fire, and regarded as ascending to God while being consumed. Part of every offering was burnt in the sacred fire, but this was wholly burnt, a "whole burnt offering." It was the most frequent form of sacrifice, and apparently the only one mentioned in the book of Genesis. Such were the sacrifices offered by Abel (Gen. 4:3, 4, here called minhah; i.e., "a gift"), Noah (Gen. 8:20), Abraham (Gen. 22:2, 7, 8, 13), and by the Hebrews in Egypt (Ex. 10:25).
The law of Moses afterwards prescribed the occasions and the manner in which burnt sacrifices were to be offered. There were "the continual burnt offering" (Ex. 29:38-42; Lev. 6:9-13), "the burnt offering of every sabbath," which was double the daily one (Num. 28:9, 10), "the burnt offering of every month" (28:11-15), the offerings at the Passover (19-23), at Pentecost (Lev. 23:16), the feast of Trumpets (23:23-25), and on the day of Atonement (Lev. 16).
On other occasions special sacrifices were offered, as at the consecration of Aaron (Ex. 29) and the dedication of the temple (1 Kings 8:5, 62-64).
Free-will burnt offerings were also permitted (Lev. 1:13), and were offered at the accession of Solomon to the throne (1 Chr. 29:21), and at the reformation brought about by Hezekiah (2 Chr. 29: 31-35).
These offerings signified the complete dedication of the offerers unto God. This is referred to in Rom. 12:1. (See Altar, Sacrifice.)