To Philothea Briggs Date: October 19, 1772. The difference between temptation and sin is generally plain enough to all that are simple of heart; but in some exempt cases it is not plain: there we want the unction of the Holy One. Voluntary humility, calling every defect a sin, is not well-pleasing to God. Sin, properly speaking, is neither more nor less than 'a voluntary transgression of a known law of God.'