You have asked the single most important question that one could ask. How does one become saved? I hope that what I am about to share with you blows your mind . . . it blew me away when I discovered this.
Above, it appears that you may have used the KJV translation, where it uses the phrase, "Ye workers of iniquity." Another translates this phrase as "lawbreakers." In order to make such a judgment, there must be a law that a person is able to assess and allocate the appropriate consequences. The only way to be called a "worker of iniquity" is if there is a standard by which to compare or gauge. I hope that makes sense. Well, the point is, is that Christ sets us free from the Law. How could a person be a "lawbreaker" if they have been set free from it? How could Christ refer to a person as a "worker of iniquity" if there were not a worldly law by which to make this statement?
Colossians 2:14 shows us that Jesus sets us free of worldly laws by which to be judged.
Colossians 2:14 KJV - "Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross . . ."
Romans 8:2 KJV - "For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death."
Romans 6:14-15 NLT - "Sin is no longer your master, for you no longer live under the requirements of the law. Instead, you live under the freedom of God's grace. Well then, since God's grace has set us free from the law, does that mean we can go on sinning? Of course not!"
Why does Jesus set us apart from worldly laws? Because no Law, not even the Laws of Moses could Truly Redeem a person.
Acts 13:39 NIV - "Through him everyone who believes is set free from every sin, a justification you were not able to obtain under the law of Moses."
As said above, the Law of Moses could not remove the Curse of Adam and Eve . . . it did not relieve the problem of the Law of Sin and Death.
So how does God know if a person has received the Circumcision of Christ . . . the only act that separates a person apart from the Laws of this world, creating them to be an Alien in a strange land? A foreigner amongst those whom he once called "mother" and "father" - "sister" and "brother"? It is the Lord who searches our Hearts to verify that the Circumcision of Christ has taken place. And this act was a picture for us in the Old Testament in the acts of the Passover . . . the sprinkling of Blood that the Spirit of God searched for . . . and thus made His Holy Judgments upon the people.
Romans 8:27 NIV - "And he who searches our hearts knows the mind of the Spirit because the Spirit intercedes for God's people in accordance with the will of God."
After Jesus cuts away the Sinful Nature from our now Purified Hearts, He sends the Free Gift of the Holy Spirit. Therefore, when the Lord searches the Hearts of human beings, He searches for the Mark of the Indwelling Holy Spirit; the Lord listens and knows the Holy Voice of His Indwelling Spirit . . . should they Indwell His Children or not. No one can possess a Holy Spirit unless their Hearts have first been Purified, for no Holy Spirit will share His House with any demon . . . impossible.
So, the reason why Jesus referred to these seemingly good and Righteous people as lawbreakers, or, workers of iniquity, is because they had yet to be freed from the Law. They may have appeared to be good people according to many of their works, but they did not Truly Turn to Christ for His Holy Circumcision, the lifting of the Curse that beset us all, apparently from birth. The Purpose of Christ is to become the remedy for the malady that occupies, or at one point, occupied our stony hearts. That stony heart must be cut out and removed, and until that happens, Hell is our destination and there is nothing that can be done about it.
Deuteronomy 30:6 NIV - "The LORD your God will circumcise your hearts and the hearts of your descendants, so that you may love him with all your heart and with all your soul, and live."
Deut 30:6 is a Keystone passage of the Bible. This shows us that it will be God who Circumcises our Hearts . . . not ourselves. And as the text shows, this Spiritual Circumcision of all that is ugly and evil must be done . . . don't miss this . . . "SO THAT . . . you may love him with all your heart and with all your soul, and live." - If this Circumcision does not take place, we cannot and will not Love Him with all our Heart and with all our soul, and live. It cannot and will not happen. Christ MUST Circumcise our hearts so that we will be set apart from the Law.
Romans 7:8 NKJV - "But sin, taking opportunity by the commandment, produced in me all [manner of evil] desire. For apart from the law sin was dead."
That's right . . . where there is no law to break, sin cannot live. Where there is no law, there can be no transgression, just as Paul teaches below:
Romans 4:14-15 NKJV - "For if those who are of the law are heirs, faith is made void and the promise made of no effect, 15 because the law brings about wrath; for where there is no law there is no transgression."
There is so much more that could be written, in fact, I could write a book on this single question that you have asked. The reason for why there could be so much more material given to you about this topic is because this topic is the Core Doctrine of the entire Bible. Hundreds of pages, this fictitious book would be . . .