Believe what you will, “I know in Whom I have believed,” have read the Bible probably 100 times, spent a considerable amount of time on my knees before God in the last 48 years, and am very comfortable with His sufficiency to not only save me, keep me as well. I was not dependent on my own works to be saved, and I’m not dependent on my own works to remain saved. I was saved by grace, and I’m kept by grace, else no one would make it.