Musar su Levitico 22:27

The "perfection" of שנה, or the concept of time, i.e. unlimited time enjoyed by Adam before his sin, was symbolized in the Temple by the various sacrifices all of which were to be offered at certain times. An animal was not fit to be offered until it was eight days old; the daily public offerings -mornings and evenings- were tied to a time frame. The additional public offerings on the Sabbaths and the festivals were also tied to a time frame. Offerings by individuals, to help them purify themselves from ritual impurity, had to be offered after a certain amount of time had elapsed after their owners had become defiled. Offerings to help individuals expiate certain sins were linked to the time the respective sins they were meant to atone for had been committed.

The second method of explaining these verses is based on Abraham's speculating that these visitors were angels. Thus the meal must be understood as an offering to G–d by Abraham. When Abraham "ran to the cattle," this means he went to prepare a bull for the sacrifice. This is what Vayikra Rabbah 27,9 means when it comments on the paragraph שור או כשב או עז, Leviticus 22,27 that the entire legislation of animal as well as meal offerings and the ability to atone for our sins by means of these animal offerings is due to the patriarchs. In the case of Abraham this is because אל הבקר רץ אברהם, "Abraham ran to the cattle" to select a suitable offering for G–d. The previous verse describing Abraham rushing into the tent to give instructions to Sarah what and how she was to bake, is a reference to the קרבן מנחה, the meal offering. Instead of mentioning a libation of wine, something that usually accompanies such offerings, Abraham took milk and butter. The reason he did so is that milk is conceptually connected to the attribute of Love, חסד, whereas wine is a symbol of the attribute of justice. At this point in Abraham's life the entire emphasis is on the acts of חסד he performs.