זוהר שמות — דף נו ע”א

When Jerusalem was destroyed and the Shekhinah exiled, the Holy King ascended to Zion and mourned. When the Shekhinah returns, He will return to her to unite with her — this is the meaning of 'when the Lord returns to Zion'. Whoever wages war in Torah merits peace at the conclusion of his words, for all the battles of Torah are peace and love. There is a divine place called 'Book' from which all forces and powers emerge. 'Vahev in Sufa' — the end of degrees, the Reed Sea, and 'the streams of Arnon' — the supernal union of inseparable love, the secret of the river that goes out from Eden.