Not sure if it was answered or not, but as I said before, how can one say that grace is not a license to sin and yet also say that one can not forgive and yet still be forgiven? This is a contradiction to me (That needs to be explained using the Bible).
I think its matter of the glass being half full or empty, and the perspective makes all the difference. One could argue that indeed, God's grace has given us a license to sin because there now lies no penalty to the sin (in the eternal sense) because Christ paid the price. One could then argue, no it doesn't give us a license to sin because it has freed us from that very sin. So, in a sense, yes grace does give us license, but in another it sets us free. Its a matter of perspective. Its not as if God is giving His blessing or permission to sin all we want, however in terms of eternal security/salvation we do have that license to sin in that no amount of sins we commit can take back His Son's sacrifice on our behalf. Sin is taken care of.
Let me put it this way. A father could tell his daughter that no matter what she does, she will always be his child and that he will always love her. She could reply, "Really? So I can go out, get drunk and have premarital sex and have a baby and you'd still love me?" Of course the father would grieve (think Holy Spirit) over these actions but it wouldn't make her any less his daughter or for that fact make him love her less.
On the contrary, how much more will she need love in order to comfort her? His reply might be, "Well you can do that, but why would you? You know better and there is so much more to life." In the same way, as Christians we know better, and know there is so much more to life in the liberty we now walk by grace and in the Spirit. Yeah, we could go out and sin, but it would only reveal to us our ignorance of the freedom and identity we now have. It may even wake us up to the fact we would rather do it God's way. When we sin, there is this small voice, not of condemnation but a revelation of who we now are. The righteousness of God, in Jesus Christ. Yeah, go and do what you're going to do, but know that you are the righteousness of God in Jesus Christ. That revelation will set you free from sin. You come to realize that your actions do not align with who you now are in Jesus Christ.
If you didn't know, there is a thing called carnal Christianity, people who are yet babes in Christ who have yet to awaken to who they are in Him. Maturity can take time, but whether you are but a babe in Christ or matured, you are still His child. Maturity isn't the means to salvation, Jesus is. Fruit take time to bear, and so you have those that have an immediate change when accepting Christ and those that change over time. Some take longer than others, for whatever reason. You may ask, "Carnal Christianity!? What is this blasphemy?" I point you to the Corinthian church, who were in all manner of sin, even such as sleeping with temple prostitutes. Yet, what words did Paul speak to them?
1 Corinthians 1 King James Version (KJV)
1 Paul called to be an apostle of Jesus Christ through the will of God, and Sosthenes our brother,
2 Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called to be saints, with all that in every place call upon the name of Jesus Christ our Lord, both their's and our's:
3 Grace be unto you, and peace, from God our Father, and from the Lord Jesus Christ.
4 I thank my God always on your behalf, for the grace of God which is given you by Jesus Christ;
5 That in every thing ye are enriched by him, in all utterance, and in all knowledge;
6 Even as the testimony of Christ was confirmed in you:
7 So that ye come behind in no gift; waiting for the coming of our Lord Jesus Christ:
8 Who shall also confirm you unto the end, that ye may be blameless in the day of our Lord Jesus Christ.
9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.
Look at everything I put in bold, and consider to whom he is speaking to. Could you look at a person in your congregation you knew was sleeping with prostitutes and tell them these same things? Honestly. Could you? "I know you are sleeping with prostitutes, but I thank God for the grace given unto you, and thank Him that you shall be blameless in the day of our Lord Jesus Christ, confirmed unto the end." You see, Paul knew the revelation of grace and the gift of no condemnation. He knew those revelations set us free from the shackles of sin and allows us to be taught by grace to deny ungodliness. He knew pulling out the Ten Commandments, or the Law wasn't going to set them free, on the contrary it would condemn them. It is grace that sets us free from sin's dominion.
Hope this helps clears things up for you. Grace isn't a license depending upon your perspective realizing the intent is to set you free from sin, not so that you can wallow in it. Sure, you can wallow, but why would you? As Paul states, "God forbid!" It isn't who you are, any longer. How can you who have died to sin, live in it? It doesn't align with who you now are, and so while there is no eternal consequences to your sin (license, in a sense) it doesn't make sense for you to wallow in it because you've been set free.