I am very much in agreement with your position on this matter.
You wrote:
Years ago we had a pastor who would say something similar, from the pulpit, about being a sinner. I would cringe when he said it. He was a devoted man, consistently laboring six days a week when he was supposed to have two days off. After he was retired, well into his seventies, his wife confided in me that "nothing's changed", he still spent his mornings in study and after lunch spent his afternoons out calling on people and was still baptizing converts. So how did this Godly man regard himself as a repetitive sinner?Evangelicals usually shrink from suggesting that God can have confidence (faith) in us (who, allegedly, "sin many times in thought, word and deed every day"!),
James said "we all stumble in many ways", but never indicated how often that is. Myself, I think we never get beyond the prayer of the tax-collector, "have mercy on me, the sinner". I think some people have a much keener awareness of sin. Zodhiates suggested it is sin to be out of God's will for us, and I think he is correct, then what if at this moment it is not God's will for me to be typing this, but rather to be out helping someone? As Zodhiates pointed out we can not know what God's will for us is at every moment. I think we have to be continually on guard against becoming like the other fellow in Jesus' story about the tax collector at prayer.