It was due to His own infinite sanctity that God should suspend, in this instance, the law which His divine justice had passed upon all the children of Adam. The relations which Mary was to bear to the Divinity, could not be reconciled with her undergoing the humiliation of this punishment.
Dom Gueranger
Lenten Penance Is A Commitment | Pope Francis
Lenten penance is a commitment, sustained by grace, to overcoming our lack of faith and our resistance to following Jesus on the way of the cross. This is precisely what Peter and the other disciples needed to do. To deepen our knowledge of the Master, to fully...