The verse in James on faith and deeds come to mind. Take a look at James 2:14-17
14What good is it, my brothers, if a man claims to have faith but has no deeds? Can such faith save him? 15Suppose a brother or sister is without clothes and daily food. 16If one of you says to him, "Go, I wish you well; keep warm and well fed," but does nothing about his physical needs, what good is it? 17In the same way, faith by itself, if it is not accompanied by action, is dead.A person who has faith must couple it with deeds. As in, one cannot just merely say they are Christians but act nothing like a Christian would. They also have an inclination (through the Holy Spirit) about what God wants them to do. This cannot be measured by the standards of men. But one who takes their faith seriously, reading the Word, serving God on a regular basis and growing in their faith through fellowship, discipleship and community worship should help the spiritual growth of a Christian.
[answered by Pastor KJT]