The following is passage provides a quickie argument against Penal Substitution* as well as some other gold nuggets. In Luke 2:22-24, we read:
And when the time came for their purification according to the Law of Moses, they brought him up to Jerusalem to present him to the Lord (as it is written in the Law of the Lord, “Every male who first opens the womb shall be called holy to the Lord”) and to offer a sacrifice according to what is said in the Law of the Lord, “a pair of turtledoves, or two young pigeons.”
Here are the fascinating gold nuggets that are worth knowing.
First, the Protestant notion of the Cross & Atonement (what they call "Penal Substitution") is that a sinner's guilt is 'imputed' to an innocent substitute, which then takes the death penalty in place of the sinner. But in this case, what was Mary's (grave) "sin" here that had the death penalty hanging over Her head, which She had to then transfer onto two turtledoves? The obvious issue here is that Mary had given birth to the Messiah, Jesus. But this certainly was not a sin in any sense. Thus, Mary's sacrifices couldn't have been about imputing the guilt onto an innocent animal substitute, much less was the animal receiving the death penalty. Thus, an animal being killed in sacrifice should not be assumed to be modeling Penal Substitution.
That said, a Protestant might object at say that this Mary situation doesn't affect Penal Substitution at all, since some sacrifices weren't about atoning for sin but rather simply about ritual purification. While there is truth to this claim, this Protestant "objection" actually backfires. The passage which Luke is referencing is Leviticus 12, a short chapter on childbirth ritual purification. (I brought this up in an older post, HERE) The plain fact is, Leviticus 12:6-7 explains it as "a turtledove for a sin offering, and the priest shall offer it before the Lord and make atonement for her. Then she shall be clean from the flow of her blood." Notice the explicit mention of "sin offering" and "make atonement". This is yuge because it means the sacrifice Mary had offered was not something distinct from the standard "sin offering" which Leviticus 4-5 tells us about. In other words, this is clear proof that "sin offering" and "making atonement" don't need to involve Penal Substitution.
Note that Leviticus 12-15 are about various types of ritual purification, not having to do with guilt for actual sins, yet all involving "sin offering" to "make atonement". Also noteworthy is that these purification chapters come, right before Leviticus 16, which is the Day of Atonement ritual (centered on purification, see HERE and HERE).
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