According to Luke 2:21–24, Joseph and Mary brought two birds at the required time. This reflects the humble circumstances in which Jesus was born. The Saviour of the world is born in a stable. His earthly parents are poor; they cannot afford a lamb for the burnt offering. Yet, Mary has given birth to the Lamb who would be offered up to deliver his people from death and darkness.
8 And if she cannot afford a lamb, then she shall take two turtledoves or two pigeons, one for a burnt offering and the other for a sin offering. And the priest shall make atonement for her, and she shall be clean.”