Hassidout sur Les Psaumes 78:71

מֵאַחַ֥ר עָל֗וֹת הֱ֫בִיא֥וֹ לִ֭רְעוֹת בְּיַעֲקֹ֣ב עַמּ֑וֹ וּ֝בְיִשְׂרָאֵ֗ל נַחֲלָתֽוֹ׃

Du milieu des brebis allaitant leurs petits, il l’amena pour être le pasteur de Jacob, son peuple, et d’Israël, son héritage.

Likutei Moharan

Therefore David was [thus] praised in the presence of Shaul (Shmuel I 16): "who is skilled at playing," for playing is building the Malkhut, therefore he was fit for Kingship. And this explains the scripture about him (Ps. 78): "from following the nursing ewes He brought him," i.e. from following the nursing ones, i.e. Netzach and Hod [see Appendix]. For they nurse the prophets, and they are the construction of the Malkhut: