We do not get saved for sinning boldly and believing, but by repentance -- metanoia, i.e. changing our mind -- through love and desire for God that transforms us, slowly as it may, into the likeness of Christ.
God only gives blessings. It's up to us to actively accept them, and it's our decision what to do with them. We are under no obligation to choose or reject God's blessings. That in itself does not make us gods. It is a gift that God gave us, so that we may -- not must -- love Him back.
"But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you."(Mat 6:33)
To seek is to search willingly. Maybe one day all the Reformed Christians will come to that realization, but I doubt it.
I believe Luther would say that it is God who brings us to the point of repentance.