when the Father looks at us through the blood of christ, he sees no sin… if God looked at us as sinners after we had excepted his sacrifice on our behalf his goal has not been achieved because we would still be seperated.
That is one of the many errors of Protestantism. It flows from Luther’s denial of free will.
Luther: "It is either God or the devil that rules; man has no freedom of choice and is absolutely devoid of responsibility for his acts. (Martin Luther, Enslavement of the will).
Since Luther believed that man did not have free will, and was therefore no responsible for his acts, he drew the conclusion (based on that error), that man must be justified by faith “alone”. The “alone” part was intended to exclude anything that pertained to the will - such as good works and sin.
He said good works were completely unecessary - not just for our initial justification, but even for our sanctification and final salvation. And he said that sin, since we have no control over our actions would not separate us from God:
Luther: "
God only obliges you to believe and to confess (the faith). In all other things He leaves you free, Lord and master to do whatever you will without any danger to your conscience; on the contrary, it is certain that, as far as He is concerned, it makes no difference whether you leave your wife, flee from your lord, or are unfaithful to every obligation. What is it to Him if you do or do not do such things? (Werke XXI p. 131) “During this life we have to sin. It is sufficient that, by the mercy of God, we know the Lamb who takes away the sins of the world.
Sin will not separate us from Him, even though we were to commit a thousand murders and a thousand adulteries per day” (Franca, 9.439). “The husband may drive away his wife; God cares not. Let Vashti go and take an Esther, as did the king of Ahasuerus” (Wittenb. V, 123).
The theology you reference in your post - that Jesus’ blood covers us over, and that God only sees Jesus’ blood when he looks upon us - is founded on a denail of the forgivness of sins.
This is what is known as the “covering” of sins. God does not forgive sins, according to Luther, but merely covers them over “like snow covering a dunghill” is his famous example.
Luther: “The Almighty does not regard the sins of men, he covers them over with the merits of Christ” (Walch XIII. 1480).
The truth is quite different. Jesus does indeed forgive our sins, not just cover them over, as the Bible teaches - “If we confess our sins, he is faithful and just, and will forgive our sins and cleanse us from all unrighteousness” (1 John 1:9).
This Luther denied. And made up the teaching that God simply covers over our sins, and when He looks upon us, He only sees the blood of Jesus.
This is where “once saved always saved” comes from. If you simply accept Jesus as your personal savior (a doctrine which is nowhere to be found in the Bible), your sins are no longer seen by God. And, since your sins are no longer seen by God, you no longer have to keep the ten commandments.
“Keep the law, by all means”, Luther said,
“but if you do not, you need not be troubled in your conscience, for the transgression of the law cannot possibly condemn you” (M. Luther, Wittenb. V. 304). “Thus let a Christian understand that it matter not whether he keeps it (the Decalogue) or not; yea, he may do what is forbidden and leave undone what is commanded, for neither is a sin” (M. Luther, W. XI, 447). If anyone said keeping the commandments was necessary, he was an enemy of Martin Luther. And, since Moses was the person who God chose to give us the ten commandments, Martin Luther hated Moses. *“I will not have Moses with his law, for he is the enemy of the Lord Jesus Christ…” (Tischr. L.C.12.S.17). *He referred to Moses as someone who should be looked upon
“with suspicion as the worst heretic, as a damned and excommunicated person; yea, worse than the Pope and the devil” Jena. 4,98.6). “No greater insult can be offered to Christ”, concluded Luther,
“than to suppose that He has come to give Commandments, to make a sort of Moses of Him” (Martin Luther Tischr. S. 66) What did Jesus say when asked what one must do to attain eternal life? (Mt 19:16)
“If thou wilt enter into life, keep the commandments” (Jesus, Mt 19:17)
Don’t fall into the errors of the arch-heretic Martin Luther. Even he did not truly believe his own lies.
Luther: “There is no religion in the world that teaches this doctrine of justification [ie faith alone]:
I myself, although I teach it publicly, have a great difficulty believing it privately” (Werke, XXV, p. 330).