Regarding your questions about various names of God, we have nothing to do with Jehova, Allah, Jesus, etc. If somebody else wants to chant in this way it is all right, but nobody is chanting Jesus etc. If they like, let them do that but as far as we are concerned, we should be satisfied with the Hare Krishna Mantra and nothing more. We have registered our association particularly under the name of Krishna. God has millions of names undoubtedly, but we are especially concerned with the name of Krishna because we are in the disciplic succession of Lord Caitanya Mahaprabhu Who
chanted this Holy Name, Krishna. Everyone should be particular to his particular disciplic succession or sampradaya’s regulative principles. This is required, as much as there are many different political parties, although every one is meant to serve the country.

From Srila Prabhupada’s letter to Sivananda — Los Angeles 13 February, 1969