LEVITICUS 1
LAWS FOR BURNT OFFERINGS
God gives Moses instructions to share with the Israelites regarding burnt offerings and animal sacrifices. God requires a spotless lamb, one without blemish, similar to the Passover in Exodus 12. God shares these instructions with Moses from the tent of meeting.
In Genesis 3, God used the skin of an animal to cover Adam and Eve in their shame. Now, the Israelites offer animal sacrifices as atonement or covering for their sin.
If someone is unable to offer a bull, they may bring a sheep or a goat. If they are unable to bring one of those, they may offer two birds, such as turtledoves or pigeons. God makes a way for everyone to participate, regardless of their wealth or status.