Matthew 7:23
And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
The difference between lawlessness and iniquity is that lawlessness is a lack of law and order, you can keep the law all you want (which of course you don't), but if you have not received the sacrificial, substitutionary death of Jesus Christ on the cross for your sins you still won't go to heaven. The law has only one purpose, to show you how much of a wicked, evil person you truly are and why you need Jesus Christ to save you.
On the other hand if you have received Christ and He lives His life through you, and His blood covers all your iniquity, all your wickedness then you will go to heaven.
Colossians 2:14
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;
Now you've conflated two different laws to support your side. That is where "when men change the word of God, confusion enters into the heart of man" comes into play. Do you not know the difference between the rites and ordinances (which were nailed to the cross) and Gods Ten Commandments? It's a simple question. Yes or no.