Malachi 1:8

Such was the offering of the murderous Cain that was rejected. He had been told by God, "If you act well, I will receive it." Such again were all the offerings of the Israelites that were rejected, whereby they received the curse of the prophet who says, "Cursed is the man who has a ram in his flock, and he vows and sacrifices to the Lord one that is sickly." He rebukes and reproaches them, saying, "Try offering it to your ruler, to see if he will be pleased with it or show you favor; this is what the Lord says." So how will any address made to God during the ministry of prayer that shows any contempt prove acceptable to God—an address that is full of all sorts of distractions, that is sickly and broken up by interruptions? This sort of thing would not be acceptable even to the most insignificant of human beings if he were thus addressed. The offering of turbulent prayer and the ministration of a heart that shows contempt are exactly like the sacrifice of a blemished ram.

(Verse 8) If you offer the blind animal for sacrifice, is it not evil? And if you offer the lame and sick animal, is it not evil? Offer it to your governor; see if he is pleased with it or accepts your face, says the Lord of hosts. LXX: For if you offer the blind animal for sacrifice, is it not evil? And if you offer the lame and sick animal, is it not evil? Offer it to your governor; see if he receives you, if he accepts your face, says the Almighty Lord. We learn more fully about the diversity of victims and what should or should not be offered in Leviticus (Lev. 21 and 22). Therefore, the priests and Levites, gatekeepers and singers, and the servants of Solomon who returned from Babylon, including those whose names were listed by Ezra, offered illicit victims to God, namely blind and lame animals, and those weakened by various infirmities (1 Esd. 2); for this is what is meant by 'languid,' encompassing everything in one word. If you were to offer gifts to your leader, would he not reject them? Would he not consider it an injustice done to him? And yet, you dare to offer this to God, when you do not dare to give it to humans? It would take too long to explain the mysteries of all the sacrifices; I will only speak about those that are contained in this present chapter. The victim of the soul is blind, as it is not enlightened by the light of Christ, nor does it have an eye that gazes upon the Gospel (Matthew 6). The prayer of the petitioner is lame, as it approaches prayer with a divided mind and listens to the people of the Jews: How long will you limp with both feet? (1 Kings 18:21) And weak, and covered with all infirmity, which does not have the power of Christ God, and the wisdom of God. Prayers of this kind, which are without the light of truth, and do not have firm traces of wisdom, decay with various weaknesses, if they are offered to the leader of the Church, or to any educated and wise teacher, will they not be rejected, and fall into contempt for him who dared to offer such things?