“I will put a new spirit inside you.” Ezekiel 36:26 is very similar to Ezekiel 11:19. Also, it has some things in common with Jeremiah 32:39 (see commentary on Ezek. 11:19 and Jer. 32:39). Also, although “spirit” can have several meanings in this verse, one of them is the gift of holy spirit, which in the Old Testament God placed “upon” people but which in the New Covenant will be “in” people. Jesus Christ understood this and taught it to his apostles at the Last Supper (see John 14:17 and commentary on John 14:17).