Musar su I Cronache 12:78

Other Rabbis in that Midrash add that the "ox" is a reference to Joseph, that the "donkey" is a reference to Issachar who is described in terms of a patient and hard working donkey in Jacob's blessings in Genesis 49,14. Joshua, a direct descendant of Joseph, would defeat Amalek in battle. The sons of Issachar, steeped in Torah study, know how G–d rules His universe. This is why the emissaries they sent to attend the crowning of King David are referred to as יודעי בינה לעתים, (Chronicles I 12, 33) "who know how to interpret the signs of the times." At that point in history they knew what was required from the people of Israel. The עבד and שפחה may allude to David and Abigail. A Biblical allusion is also cited for this. Thus far the Midrash.

Other Rabbis in that Midrash add that the "ox" is a reference to Joseph, that the "donkey" is a reference to Issachar who is described in terms of a patient and hard working donkey in Jacob's blessings in Genesis 49,14. Joshua, a direct descendant of Joseph, would defeat Amalek in battle. The sons of Issachar, steeped in Torah study, know how G–d rules His universe. This is why the emissaries they sent to attend the crowning of King David are referred to as יודעי בינה לעתים, (Chronicles I 12, 33) "who know how to interpret the signs of the times." At that point in history they knew what was required from the people of Israel. The עבד and שפחה may allude to David and Abigail. A Biblical allusion is also cited for this. Thus far the Midrash.

There are three aspects to this pillar of Torah, which is one of the pillars supporting the world. 1) Involvement with Torah must not serve ulterior motives, but must be designed to understand and observe its laws. Torah wisdom proclaimed must be halachically sound. 2) Its pursuit must be constant, in accordance with the maxim of והגית בו יומם ולילה (Joshua 1,8). At the very least it is required to set aside regular times for Torah study and to make one's working hours a lesser priority. 3) One must provide financial help to those who study Torah as their main occupation, much as our sages taught us based on the verse “שמח זבולון בצאתך ויששכר באוהליך” (Deut.33,18). Rashi explains on that verse that the two tribes made an agreement whereby יששכר shared the merit acquired through his Torah study with זבולון, seeing the latter had financed it. The fact that יששכר produced great Torah scholars is attested to in Chronicles I 12,33, when the delegation of that tribe at the crowning of King David is described as being composed of outstanding people, which compensated for the fact that it was such a numerically small delegation.