Quoting Commentary for Song of Songs 4:16

Gather to Me My devoted ones And He will further call to the heavens and the earth that they gather the exiles to Him, as the matter that is stated (Song 4:16): “Awake, O north wind, and come, O south wind.”

[Ps. 104:25]: Parallel to “Let the waters bring forth creeping things” [Gen. 1:20] it says: “There is the sea, vast and wide, its creatures beyond number, beings both small and great.” “The face of the cherub is like that of a man,”¹⁸⁴b. Hagigah 13b. the cherub being in the form of a little child. When it says “birds shall fly” [Gen. 1:20], it refers to the two cherubim which draw blessing forth, the attributes of south and north. Of these Scripture says: “Awake, O north, and come forth, O south. blow your winds in my garden” [Cant. 4:16], as we have explained it. Once heaven and earth are doing their work, the power of these other two attributes is drawn toward them and added to them.

and to the south which is a strong wind, “Do not refrain from blowing strongly to bring My exiles.” Similarly (Song 4: 16), “Awaken, O north wind, and come, O south wind.” Since the north wind is weak, it needs strengthening. Therefore, it is written, “Awaken,” “Give.” But concerning the south wind which does not need straightening, it is written, “Come,” as it is, and so, “Do not refrain.”