Leviticus 14:22
and two turtledoves or two young pigeons, whichever he can afford, one to be a sin offering and the other a burnt offering.

Leviticus 12:8
But if she cannot afford a lamb, she shall bring two turtledoves or two young pigeons, one for a burnt offering and the other for a sin offering. Then the priest will make atonement for her, and she will be clean.'"

Leviticus 15:14, 15
On the eighth day he is to take two turtledoves or two young pigeons, come before the LORD at the entrance to the Tent of Meeting, and give them to the priest. . . .

Luke 2:24
and to offer the sacrifice specified in the Law of the Lord: "A pair of turtledoves or two young pigeons."

Romans 8:3
For what the Law was powerless to do in that it was weakened by the flesh, God did by sending His own Son in the likeness of sinful man, as an offering for sin. He thus condemned sin in the flesh,