Our proposition is you chant God's name. That is our proposal.
Therefore it is universal. If you like, you can chant Jehovah or you can chant Allah, but we request you that you chant God's name. Is it very difficult? It is not at all difficult. Lord Caitanya said that there are innumerable names of God according to different languages, different countries, different societies. And each and every one of them has the potency of God Himself. If there is any God, so God is Absolute—therefore there is no difference between His name and He Himself.
Just like in the material world, in the world of duality there is difference between the name "water" and the substance water. The name water is different from the substance water. If you are thirsty, if you simply chant "water, water, water, water," your thirstiness will not be quenched. You require the substance water. That is material. But spiritually, the name Kṛṣṇa or the name Allah or the name Jehovah is as good as the Supreme Personality of Godhead.Therefore if you chant Hare Kṛṣṇa . . . you may inquire why we are chanting Hare Kṛṣṇa. Hare Kṛṣṇa, this name, was chanted by Lord Caitanya, who introduced this movement five hundred years ago in India. We are following the footprints of Lord Caitanya. Because He chanted Hare Kṛṣṇa, therefore we are chanting Hare Kṛṣṇa. So, but Lord Caitanya has recommended that God has innumerable names, and any one of them can be chanted, and there is no hard-and-fast rules and regulations for chanting.