Praying a prayer is never offered in Scripture as a ground of assurance, nor is sincerity. Jesus tells us not to look at prayers and sincerity for assurance, but at our actions – the fruit of our lives (Matt. 7:15-27; John 15:8; 2 Pet. 1:5-12). The New Testament tells us to look at the holiness of our conduct, the love we have for others, and the soundness of our doctrine as the key indicators of our assurance (1 Thess. 3:12-13; 1 John 4:8; Gal. 1:6-9; 5:22-25; 1 Tim. 6:3-5) (Mark Dever and Paul Alexander).