Adam Clarke on Leviticus 9:3

Take ye a kid - In Lev 4:14 a young bullock is commanded to be offered for the sin of the people; but here the offering is a kid, which was the sacrifice appointed for the sin of the ruler, Lev 4:22, Lev 4:23, and hence some think that the reading of the Samaritan and the Septuagint is to be preferred. Speak unto the Elders of Israel, these being the only princes or rulers of Israel at that time; and for them it is possible this sacrifice was designed. It is however supposed that the sacrifice appointed Lev 4:14 was for a particular sin, but this for sin in general; and that it is on this account that the sacrifices differ.