What is salvation, salvation from what? (Bible and SOP quotes are acceptable...)

Matthew 1:21 And she shall bring forth a son, and you shall call his name JESUS: for he shall save his people from their sins.

From What? Their sins!

There is nothing like "sinful flesh". Jesus said so. "Jesus called the crowd to him and said, 'Listen and understand. What goes into someone’s mouth does not defile them, but what comes out of their mouth, that is what defiles them.'" (Mat. 15:10-11)

So all the food you eat or drink is immaterial when it comes to your state as a person before God. "'Are you still so dull?' Jesus asked them. 'Don’t you see that whatever enters the mouth goes into the stomach and then out of the body?'"

Then he said, "But the things that come out of a person’s mouth come from the heart, and these defile them. For out of the heart come evil thoughts — murder, adultery, sexual immorality, theft, false testimony, slander." (Mat. 15:16-19)

Did all of those things come out of the heart of Jesus? I don't think so. Yet he was the son of man, just as we are. In conclusion therefore, there is no such thing as "sinful flesh"; but every man sins when he follows after the enticement of the wicked one. Jesus was without sin.

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1 Peter 2:24 Who his own self bore our sins in his own body on the tree, that we, being dead to sins, should live to righteousness: by whose stripes you were healed.

Romans 8:3-4 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: 4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.

2 Corinthians 5:21 For he has made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.

John 14:30, "I will no longer talk much with you, for the ruler of this world is coming, AND HE HAS NOTHING IN ME."

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John 14:30 Hereafter I will not talk much with you: for the prince of this world comes, and has nothing in me.

Yep! Exactly.

John 17:4 I have glorified you on the earth: I have finished the work which you gave me to do.

Well said!

Heb. 2:18, "For in that he himself hath suffered being tempted (YET WITHOUT SIN), he is able to succour them that are tempted (WHO CONTINUE IN SIN)."

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Being tempted is not a sin, else Christ being tempted would be a sinner, to quote Hebrews 2:18

True. Therefore there is nothing like "sinful flesh", else Christ would be sinful and he was not.

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That is your opinion which I do not share. Romans 8:3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: