זוהר בראשית — דף רמז ע”ב

The secret of the paths that emerge from above, the essence of the Torah, inherits the heaven encompassing twenty-two letters. From there they emerge toward the Oral Torah which is called earth. The name El Shadai and the name El are one place, and both signify from the side of Judgment. Jacob blessed his son Joseph, and this blessing encompasses all blessings, for the blessing of El Shadai completes all deficiencies.