World Wide Study Bible
a Bible passage
20Nevertheless, do not rejoice at this, that the spirits submit to you, but rejoice that your names are written in heaven.”
20. rejoice not, &c.—that is, not so much. So far from forbidding it, He takes occasion from it to tell them what had been passing in His own mind. But as power over demons was after all intoxicating, He gives them a higher joy to balance it, the joy of having their names in Heaven's register (Php 4:3).