ISB ~ John 20 v22

he breathed on them:Anticipates the coming of the Spirit on Pentecost, which will take place 50 days later (Acts 2:1-4). Here we see that the risen humanity of Jesus has become a sacrament of the divine Spirit (6:53-58; CCC 1116).

• John uses an expression that recurs in significant contexts in the Greek OT. It appears in Gen 2:7, where the Lord breathes life into Adam; in 1 Kings 17:21, where the Greek version specifies that Elijah resuscitated a boy with his breath; and in Ezek 37:9, where God raises an army of corpses to new life by the breath of the Spirit.