“Enq: Do you mean to say that prayer is an occult process bringing about physical results?
Theo: I do. Will Power become a living power. But woe unto those Occultists and Theosophists, who, instead of crushing out the desires of the lower personal ego or physical man, and saying, addressing their Higher Spiritual EGO immersed in Atma-Buddhic light, “Thy will be done, not mine”, etc., send up waves of will-power for selfish or unholy purposes! For this is black magic, abomination, and spiritual sorcery.
Unfortunately, all this is the favourite occupation of our Christian statesmen and generals, especially when the latter are sending two armies to murder each other. Both indulge before action in a bit of such sorcery, by offering respectively prayers to the same God of Hosts, each entreating his help to cut its enemies’ throats.
Enq: David prayed to the Lord of Hosts to help him smite the Philistines and slay the Syrians and the Moabites, and “the Lord preserved David whithersoever he went.” In that we only follow what we find in the Bible.
Theo: Of course you do. But since you delight in calling yourselves Christians, not Israelites of Jews, as far as we know, why do you not rather follow that which Christ says?
And he distinctly commands you not to follow “them of old times”, or the Mosaic law, but bids you do as he tells you, and warns those who would kill by the sword, that they too, will perish by the sword.
Christ has given you one prayer of which you have made a lip prayer and a boast, and which none but the true Occultist understands. In it you say, in your dead-sense meaning: “Forgive us our debts, as we forgive our debtors,” which you never do.
Again, he told you to love your enemies and do good to them that hate you. It is surely not the “meek prophet of Nazareth” who taught you to pray to your “Father” to slay, and give you victory over your enemies! This is why we reject what you call “prayers”.”
H. P. Blavatsky
The Mark Of God: Understanding Your "I AM Presence" 