we can not obey unless we have Christ's righteousness.

Therefore, Christ's righteousness is obtained by our own obedience.

In order to have Christ's righteousness imputed to us, we must first obey His law.
we can not obey unless we have Christ's righteousness.

we can not obey unless we have Christ's righteousness.

You have things out of their proper order. If what you said were true, it would mean that at least one of the following must also be true:

1) all sinners have Christ's righteousness; or
2) we are unable to obey through the God-given freedom of choice and exercise of our will unless/until we have Christ's righteousness.

This robe [spotless character], woven in the loom of heaven, has in it not one thread of human devising. Christ in His humanity wrought out a perfect character, and this character He offers to impart to us. "All our righteousness are as filthy rags." Isaiah 64:6. Everything that we of ourselves can do is defiled by sin. But the Son of God "was manifested to take away our sins; and in Him is no sin." Sin is defined to be "the transgression of the law." 1 John 3:5, 4. But Christ was obedient to every requirement of the law. He said of Himself, "I delight to do Thy will, O My God; yea, Thy law is within My heart." Psalm 40:8. When on earth, He said to His disciples, "I have kept My Father's commandments." John 15:10. By His perfect obedience He has made it possible for every human being to obey God's commandments. [yet is green really saying we can keep the law by ourselves??? He has said we need to obey before we can get Christ's righteousness. Perhaps green is confused by the terms obey and submit, who knows?] When we submit ourselves to Christ, the heart is united with His heart, the will is merged in His will, the mind becomes one with His mind, the thoughts are brought into captivity to Him; we live His life. This is what it means to be clothed with the garment of His righteousness. Then as the Lord looks upon us He sees, not the fig-leaf garment, not the nakedness and deformity of sin, but His own robe of righteousness, which is perfect obedience to the law of Jehovah. {COL 311.4}

You wrote - "Our imperfect obedience is required, but not sufficient." You applied the expression - "imperfect obedience" to the results of abiding in Jesus. Here is how Ellen White used the phrase:

Without Christ it is impossible for him to render perfect obedience to the law of God; and heaven can never be gained by an imperfect obedience; for this would place all heaven in jeopardy, and make possible a second rebellion. {ST, December 30, 1889 par. 4}

That's why we don't gain heaven by OUR obedience.

True sanctification means perfect love, perfect obedience, perfect conformity to the will of God. We are to be sanctified to God through obedience to the truth. {AA 565.1}

Only for those who return to their allegiance to God, only for those who obey the law that they have violated, will the blood of Christ avail. Christ will never become a party to sin. (MR 900.37).

Whenever one renounces sin, which is the transgression of the law, his life will be brought into conformity to the law, into perfect obedience. This is the work of the Holy Spirit. {Ev 308.4}

The moment the sinner believes in Christ, he stands in the sight of God uncondemned; for the righteousness of Christ is his: Christ's perfect obedience is imputed to him. But he must co-operate with divine power, and put forth his human effort to subdue sin, and stand complete in Christ. {FE 429.3}

In perfect obedience to His holy will, we are to manifest adoration, love, cheerfulness, and praise, and thus honor and glorify God. {AG 58.5}

Under the new covenant, perfect obedience is the condition of life. {AG 138.4}

But by perfect obedience to the requirements of the law, man is justified. {HP 146.4}

We would invite all to come, all to abide in Christ, to advance daily in the perfection of character by abiding in Christ. As they do this, they find that rest that can come only through perfect obedience. {HP 277.4}

This is true sanctification, for sanctification consists in the cheerful performance of daily duties in perfect obedience to the will of God. {ML 250.5}

Did you ignore the It is written?

Do you know what Forgiveness is? There are two Green word translated into English as forgive. Do you know what they are and what the difference between them is?

God does not hold anything against any one. God is forgiveness (Charizomai) personified. Sinners that parish, will parish forgiven by God. What we need is forgiveness (Aphiemi) as in 1 John 1:9 If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

The whole Talmud consists of 63 tractates, and in standard print is over 6,200 pages long. It is written in Tannaitic Hebrew and Aramaic. The Talmud contains the teachings and opinions of thousands of rabbis on a variety of subjects, including Halakha (law), Jewish ethics, philosophy, customs, history, lore and many other topics. The Talmud is the basis for all codes of Jewish law and is much quoted in rabbinic literature.

Do YOU need to know the difference between "Charizomai" and "Aphiemi" in order to forgive someone? Do YOU think God consults his Greek lexicon before deciding whether to "Charizomai" you or to "Aphiemi" you?