Ambrose of Milan
Patristic
A.D. 339–397
“Therefore, we know that above all faith should commend us to God. When we have faith, let us strive for our works to be perfect. For this is a full and perfect sacrifice, as the Lord himself teaches us, saying: 'You shall offer to me your gifts and offerings on my feast days, without detracting or dividing them; but offering them in full, intact, and perfect.' Now, the feast day of the Lord is where the grace of perfected virtues resides. Those who are truly perfect are those whose mind, having conquered the allurements of worldly anxieties and bodily pleasures, is free from the world and dedicated to God, not diminishing anything from the straight path of their direct intention, nor dividing the times of their own affections now to luxury, now to labor. Therefore, only the wise celebrate this solemnity, no one else. For it is difficult to find a soul immune to such passions.”