The axe at the root
It may be, indeed, that some of the scribes and Pharisees tried to keep all the commandments, and consequently were, as to the righteousness of the law, that is, according to the letter of it, blameless. But still the righteousness of a Christian exceeds all this righteousness of a scribe or Pharisee by fulfilling the spirit as well as the letter of the law, by inward as well as outward obedience. In this, in its spirituality, it admits of no comparison. This is the point which our Lord has so largely proved in the whole tenor of this discourse. Their righteousness was external only. Christian righteousness is in the inner person. The Pharisee cleaned the outside of the cup and the plate (Matthew 23:25). The Christian is clean within. The Pharisee labored to present God with a good life. The Christian, with a holy heart. The one shook off the leaves, perhaps the fruits, of sin. The other lays the axe to the root (Matthew 3:10), as not being content with the outward form of godliness (2 Timothy 3:5), however exact it may be, unless the life, the Spirit, the power of God for salvation (Romans 1:16), is felt in the inmost soul.
1771 text
11. It may be indeed, that some of the Scribes and Pharisees, endeavoured to keep all the commandments, and consequently were, as touching the righteousness of the law, that is, according to the letter of it, blameless. But still the righteousness of a Christian exceeds all this righteousness of a Scribe or Pharisee, by fulfilling the Spirit as well as the letter of the law, by inward as well as outward obedience. In this, in the spirituality of it, it admits of no comparison. This is the point which our Lord has so largely proved, in the whole tenor of this discourse. Their righteousness was external only: Christian righteousness is in the inner man. The Pharisee cleansed the outside of the cup and the platter; the Christian is clean within. The Pharisee laboured to present God with a good life; the Christian with a holy heart. The one shook off the leaves, perhaps the fruits of sin; the other lays the axe to the root: as not being content with the outward form of godliness, how exact soever it be, unless the life, the Spirit, the power of God unto salvation, be felt in the inmost soul.