Rajk,
1) There is no salvation in saving anyone's life.
King James Version
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Acts 4: 10 - 12
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Be it known unto you all, and to all the people of Israel, that by the name of Jesus Christ of Nazareth, whom ye crucified, whom God raised from the dead, even by him doth this man stand here before you whole.
This is the stone which was set at nought of you builders, which is become the head of the corner.
Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved.
Romans 3: 19 - 21
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Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.
Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets;
James 2: 10
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For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.
In Luke 23: 39-43, whom did the thief on the cross love to get to paradise?
In Acts 16: 30-31, whom did the jailer love to gain eternal life after he spoke to Paul and Silas asking "Sirs, what must I do to be saved?" The next verse shows, "And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house."
2) Man cannot try to keep the law and get to heaven through it.
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Galatians 3: 21
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Is the law then against the promises of God? God forbid: for if there had been a law given which could have given life, verily righteousness should have been by the law.
John 14:6
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Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
John 3: 17 - 18
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For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
Ephesians 2: 8 - 9
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For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
Not of works, lest any man should boast.