Yeshayah 50:4

Adonoi HASHEM hath given Me the leshon limmudim (learned tongue of disciples), that I should know how to speak a devar (word, i.e., word of consolation) in season to him that is weary; He wakeneth baboker baboker (morning by morning), He wakeneth Mine ozen (ear) to hear as the limmudim (disciples, those being taught).