The Old way ends in death; in the new way, the Holy Spirit gives life. 2 Corinthians 3:6
Every kind of virtue may be brought into us by two different ways. They may be taught us outwardly by men, by rules and precepts; and they may be inwardly by men, by rules and precepts; and they may be inwardly born in us as the genuine birth of our own renewed spirit.
The former at best change our outward behavior, putting our passions under a false restraint. This way of learning goodness, though imperfect, is necessary. But all this outward instruction, whether from good men r the Scripture, makes nothing perfect.
The Scriptures have no good or benefit except as they lead to salvation. This salvation is not from the Scriptures themselves but from faith in Christ Jesus. Scripture is to teach us where to find the source of all light and knowledge and can only direct us to something better.
If you learn virtue and goodness only from men or books, you will be virtuous according to time and place and outward forms. You may do works of humility and love. But the inward virtues are only to be obtained by the operation of the Holy Spirit – not outwardly teaching but inwardly brining forth a newborn spirit within us.
Credit to Andrew Murray