Еврейская мысль к Вайикра 2:1

However, the whole time this ethical state continues, from all of its aspects, whether from the aspect of the weakness of human physicality, which also comes from the ethical weakness of our own sins and the sins of our fathers, or from the aspect of ethical weakness, humanity still has to be "bandaged" with regards to the eating of animal. How disgusting is it, for man’s table to be filled, but his Master’s table empty? For his own animalistic needs, man is willing to kill an animal, but to show an inner recognition of gratitude for God’s kindness, he’s unwilling to offer a sacrifice from the best of his sheep and cattle? Therefore, this is needed for human culture during the process towards success, that as nations and kingdoms all gather together to serve God, they will [desire to] express from the depths of their souls a deep appreciation [in a way] that has the most impact according to man’s nature and emotions. And this also teaches [man] that the honor and gratitude towards the Master of Everything, the Gracer of goodness and kindness, is more [important] than one’s own feelings, until all of humanity rises itself up to the abstain from meat, which he will no longer need, because [man's] natural strength will be stronger because of the blessings of nature, and from the traits of souls that are good and strong in lofty ethics. Then, all sacrifices from living things will be nullified, except for the thanksgiving offering of bread. Only the mincha will be pleasant to God, as it is stated about it, (Leviticus 2:1) “and when a soul offers a mincha offering to God.” [Only] the mincha comes from the approval of the pure soul of humanity.

It is further ordained that the offerings must all be perfect and in the best condition, in order that no one should slight the offering or treat with contempt that which is offered to God’s name: “Offer it now unto thy governor; will he be pleased with thee?” (Mal. 1:8). This is the reason why no animal could be brought that was not yet seven days old (Lev. 22:26); it is imperfect and contemptible, like an untimely birth. Because of their degraded character it was prohibited to bring “the hire of a harlot and the price of a dog” (Deut. 23:18) into the Sanctuary. In order to bring the offering in the beat condition, we choose the old of the turtle-doves and the young of the pigeons, the old pigeons being less agreeable. The oblation must likewise be mingled with oil, and must be of fine flour (Lev. 2:1), for in this condition it is good and pleasant. Frankincense is prescribed (ibid.) because its fumes are good in places filled with the odour of burnt flesh.