James 1:26-27 If any man among you seem to be religious, and bridle not his tongue, but deceive his own heart, this man’s religion is vain. Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspotted from the world.
If someone is a careful follower of his belief or worship, but he cannot control or restrain his tongue, he betrays and misleads himself (and sometimes others) and his faith is in vain and of no value.
Pure and undefiled religion is twofold: to visit the fatherless and widows in their affliction and to keep yourself unspotted from the world. True religion consists of common benevolence and purity of heart and life where we let our lights shine before men, that they can see our good works, and your Father in heaven can be glorified (Matt. 5:16, 44; 2Cor. 9:8; Col. 1:10; 1Tim. 1:5; Tit. 2:7, 14; 3:1, 8; 1Jn. 3:17).