How do we know a Christian is a true follower of Christ?

True Christians are identified not by what they claim but by their belief that Jesus Christ is the sovereign Savior who accomplished the salvation of His people without any dependence on human effort. This faith aligns them with the teachings of Scripture and separates them from those who distort the meaning of being a Christian by adding works or human merit to faith in Christ. Christians come to faith through being taught of God, as evidenced in the lives of the Apostles and early believers.