If you’re a Christian, you must prove your faith by the way you live your life. Love God with all your heart, soul, mind and strength . . . and then keep His commandments because you love Him. It’s easy to spot a fake. You know, somebody who talks a good game but doesn’t actually do anything. James knew this. It’s why he wrote this:

Controlling your speech is just one common example which makes a wider point. Talk is cheap. Prove your repentance and faith in the Gospel of Jesus Christ by your life of habitual, loving obedience to His law.

• This is my own translation of James 1:26. The details can be found here.