Totally and completely wrong.
The sole basis for our salvation if Christ's finished work on the cross.
We CAN'T obey God, even if we want to.
And even if we could lead a perfectly pure and righteous life from this moment on out, it would not do any good because of the sin we have already committed in the past, that we cannot undo, that condemns us.
.
So, you reject the plain words of the scriptures!
Nothing new with you.
The writing of the commandments on our hearts is the sole basis of our salvation.
Its the sole difference in the substance of the old and the renewed covenant.