 He also said that salvation by grace means being shaken loose from what he considered to be the folly of implanting our ego at the center of the plan of salvation with the belief that we must arrive at sinless perfection to be sure of salvation.Focusing on the fact that sin is deeper than actions, that it is a part of human nature, Heppenstall said that sin does not reign in the true Christian's life, but it does remain in the sense that human nature, with its inherent limitations, cannot even faultlessly discern the complete will of God.He argued from the Bible that it is essentially spiritual maturity and walking with God in love.