מוסר אויף תהילים 45:5

And likewise did our Rabbis, may their memory be blessed, say about Torah study (Taanit 7a) [on the verse in Jeremiah 50:36], "A sword is upon the boasters," that colleagues need to review together the teaching that they are studying; so that what this one missed, the other one will reveal. But there are two types of association of colleagues to study. The first is if they are both sages that fully served (apprenticed with) their teacher, yet they join in order to sharpen each other. They then need to fulfill the words of our Rabbis, may their memory be blessed, in Tractate Shabbat (63a) in the chapter [entitled] BeMeh Isha: Rabbi Yirmeyah said that Rabbi Elazar said, "Two Torah scholars who sharpen one another in halakha (Jewish law); the Holy One, Blessed be He, ensures success for them, as it is written (Psalms 45:5), 'And in your majesty (vahadarkha).' Do not say, 'And your majesty'; but rather, 'and He will sharpen you (vechidedkha).'" (Rashi explained, "And in your majesty," is like, "and He will sharpen you.") Moreover, they will rise to prominence, as it is stated (in the continuation of the verse), "prosper, ride on." I might have thought even [if one engages in the study of Torah] not for its own sake; therefore, the verse states, "on behalf of truth." I might have thought [that one would be rewarded with prosperity even] if he became arrogant; therefore, the verse states. "Meekness and righteousness." And if they do so [in the proper manner] they merit the Torah that was given with [God's] right hand, as it is stated, "and let your right hand teach you tremendous things." Rav Nachman bar Yitzchak said, "They are rewarded with the matters that were stated with regard to the right hand of the Torah." To here are their [words]. Behold we must be careful that [our study] be specifically for its own sake and that one not become arrogant. So he should think in his heart, "What am I? I still have not grasped even like a drop in the sea from the depth of the Torah!"

For this reason I must issue an admonishment regarding the trait of humility itself. It is written, “Mount and ride on behalf of truth and righteous humility” (Tehillim 45:5). As this verse indicates, humility must be righteous and not a deception to make an impression on others. This is a matter that God will examine, for the God of all spirits will bring to judgment anyone who fails to conduct himself with integrity and humility. But concerning the one who does behave with integrity and humility it is written, “And those who love Him will be like the sun going forth in its strength” (Shoftim 5:31). Amein.