Christ Jesus said in His teaching on how to pray that the Almighty Father God knows already what is in our hearts; " Mat 6:7 But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking." you Quote...These repetitions should be said like this, "Lord Jesus Christ Have Mercy on Me" end quote
It seems you're own words did condemn you....quote""If anyone teaches a different doctrine and does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and understands nothing."end quote
As Christ Jesus said; "Mat 12:37 For by thy words thou shalt be justified, and by thy words thou shalt be condemned."
You don't really understand. This prayer (the Jesus Prayer) that I showed you has been practiced by the Christians since the 2nd century. The earliest form was just a simple naming of Jesus on their lips. Read the story of St Ignatius the God-Bearer, and you will see a clear example of this.
"This holy man is called ``the God-bearer'' because he constantly bore the name of the Living God in his heart and on his lips. "
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St. Paul said, "The teaching which accords with godliness", that is simply what I was saying. This is a Christian teaching which accords perfectly with godliness, it is a part of holy Christian tradition (2 Thess 2:15).
If it is a "vain repetition" as you claim, then the Lord's Prayer is a vain repetition, as well as the blind beggar who
repeatedly cried to Jesus, “Son of David, have mercy on me!” (Luke 18:38), and the Publican who could not so much as lift up his eyes to heaven, but smote upon his breast saying, "God be merciful to me a sinner!" (Luke 18:13).
Not only do these verses support repetitive prayer, they also support the use of the Jesus Prayer.
When Jesus spoke about prayer, he did not condemn repetitions but
vain repetitions. He meant us not to say the repeated prayers without any real meaning or purpose, to babble like a pagan idolater. He was not at all condemning repeated prayer, only prayer that is futile - empty, vain, and without any spiritual fruits.
You are mistaken on the meaning of Christ's words.
"Let everyone that nameth the name of Christ depart from iniquity" (2 Timothy 2:19). Another clue to the use of the Jesus Prayer. The name of Jesus is sharper than any 2 edged sword.