Schir haSchirim 1:1 Kabbala: Zohar & Ohr Ne'erav

R. Hiya said: ‘One day I was on my way to visit R. Simeon to learn from him the portion of the Passover. In a certain mountain which I passed I saw some clefts in a rock and two men sitting in one. As I went along I caught the sound of their voices saying: “A song, a psalm of the sons of Korah.” Why both song and psalm? We have learnt in the name of R. Simeon that this is a double song, and therefore superior to other songs. So, too, with the expressions, “A psalm, a song for the Sabbath day” (Ps. 92, 1), or “Song of songs” (S.S. 1, 1): the doubling is a sign of pre-eminence.

The song of songs, which is Solomon’s (Song 1:11). Worthy is the generation in whose midst rests high wisdom. The time when the Holy One, blessed be He, desires to reveal on earth that which He has not revealed to the lofty angels.