Here, again are the verses that "plainly" tie Paul's "deeds...done in righteousness" in verse 5 to the works of Mosaic LAW. Not all deeds or baptism or charity, only works of the Mosaic Law. Not any "law", not the "royal law", not the natural law, ONLY the Mosaic Law.
"Though I myself have reason for confidence in the flesh also. If any other man thinks he has reason for confidence in the flesh, I have more: 5 circumcised on the eighth day, of the people of Israel, of the tribe of Benjamin, a Hebrew born of Hebrews; as to the law a Pharisee, 6 as to zeal a persecutor of the church, as to righteousness under the law blameless. 7 But whatever gain I had, I counted as loss for the sake of Christ. 8 Indeed I count everything as loss because of the surpassing worth of knowing Christ Jesus my Lord. For his sake I have suffered the loss of all things, and count them as refuse, in order that I may gain Christ
9 and be found in him, not having a righteousness of my own, based on law, but that which is through faith in Christ, the righteousness from God that depends on faith; 10 that I may know him and the power of his resurrection, and may share his sufferings, becoming like him in his death, 11 that if possible I may attain the resurrection from the dead. (Phil. 3)
What is Paul contrasting "the righteousness of God that depends on faith" to? Is it EVERY deed "done in righteousness", as you are claiming, or is it "righteousness of my own based on law"? In verse 6, as he is going through his JEWISH credentials, he says he is blameless "as to righteousness under the law", which PROVES beyond any doubt that when he contrasts faith to "righteousness of my own based on law" he means the MOSAIC LAW. Next...
"What shall we say, then? That Gentiles who did not pursue righteousness have attained it, that is, righteousness through faith; 31 but that Israel who pursued the righteousness which is based on law did not succeed in fulfilling that law. 32 Why? Because they did not pursue it through faith, but as if it were based on works. They have stumbled over the stumbling stone, 33 as it is written, "Behold, I am laying in Zion a stone that will make men stumble, a rock that will make them fall; and he who believes in him will not be put to shame." (Rom. 9)
It is crystal clear that Paul thinks that Israel pursued "righteousness" based on works, and that those works were works of the Mosaic law. Next...
"Moses writes that the man who practices the righteousness which is based on the law shall live by it." (Rom. 10)
Again, "righteous practices" are tied directly to the Mosaic Law.
Now, please stop merely repeating your contention and acting incredulous because I won't accept "what the Bible plainly says". Try to actually give a response to the verses I posted, or post some of your own that tie "deeds...done in righteousness" to baptism or charity or ANYTHING but works of the law.