Jesus is able to save to the uttermost
Hebrews 7:25 (ASV)
25Wherefore also he is able to save to the uttermost them that draw near unto God through him, seeing he ever liveth to make intercession for them.
When William Clarke visited a beer-house, a lady walked up to him wanting to know what true religion was. And using the scriptures, Mr. Clarke showed the conscience-stricken woman not just what God expected, but also His power to save to the uttermost. A few weeks later, she was saved!
Prayer and its Remarkable Answers, Being a Statement of Facts in the Light of Reason and Revelation by William W. Patton
Mrs C.S. Whitney reports that her husband gave up his 25-year tobacco habit after realizing it was sinful. When he was tempted to smoke again, he prayed to the One able to save to the uttermost to destroy the craving, and it was immediately answered.
Mr. W. M. was at the end of his life, but he had not yet given his life to Christ, because he thought his sin was too great to be forgiven by God. Through conversation with evangelist Robert Gribble, Mr. M came to the understanding that Christ forgave completely, and he found peace in Christ.