Numbers 6:27

Put my name upon] This may mean simply to pronounce Jehovah's name over the people in blessing and thus mark them as His by covenant relation, as the Christian minister does when he baptises 'into the name of Christ.' But in OT. the 'name of Jehovah' is His revealed character; see on Exodus 3:13. So that to 'put Jehovah's name' upon a person is to declare to him the presence and nature of Jehovah. The priest does this when he blesses the people. He gives them the assurance of Jehovah's presence and favour.