It is not, however, a sinless life. They all can . They all should . However, unfortunately, they all don't. Experiential righteousness is not guaranteed.
Failure is a sad possibility for the believer.
Back in 1982 I asked Dr. Charles Ryrie to be on my ordination council and to speak at my ordination service. After he agreed I told him how much I enjoyed preaching the Word of God every week. I had been doing so for all of about 6 months at the time. Dr. Ryrie's response greatly challenged me. Bob Wilkin is the Founder and Executive Director of Grace Evangelical Society.