Re: "Not all who cry out Lord lord"...."Whoever calls on the name of the Lord.."
Amen...the whole Christian life is about grace through faith only in what Christ has already done for us in His finished work. This drives those that want to work for their salvation crazy and brings out the Judaizers in droves. The gospel of the grace of Christ is offensive to the law-keeping Old Covenant mindset. It's actually a great sign that the true gospel is being preached when the Judaizers show up. It also gives us another chance to preach Christ again. It's all good Willie!....
And so many of us try our best to make it any number of other things.