Hmmm... They must not have read the Scripture that says there's nothing we can do to make ourselves equal to or worthy of the gift (Eph. 2:8-10).
This realization of our inability has become a source of comfort to me. Knowing Christians have nothing to do with the acquisition of God's grace, I'm made more aware of just how stupendous the gift is, how specific and definite the gift is, and how this gift was proclaimed by God for His glory from before the foundation of the world. At the moment of creation, God already had you and me in His perfect care.
The sense of humility is almost overwhelming. I deserve the gift zero times infinity.
Just because we are unable ALONE to acquire God's grace and be pleasing in His eye doesn't mean we don't have a responsibility to fulfill His commands. Now, if you say Christ is your King, but you disobey your King, what do you think the King will do to you? Will He excuse you from your responsibility because "you couldn't, obey God anyway"? If God gives a command, it implies that a person has the ability to follow it. Or not to follow it. Based on our response to God's graces (which are NOT irrestistible), the Scriptures clearly say we will be judged.
All the faith in the world is worthless without love. 1 Cor 13:2.
I would be careful about your confidence in faith alone.
Regards