We sometimes make polluted springs of ourselves by the way we talk - Jas. Ideally, the mouth confesses what the heart believes - Rom. It is an unhappy situation when the heart believes one thing, but what comes out of the mouth is something else - e.g. Jn. We will be no happier than Peter if our speech denies the Lord - Lk. Our words must be consistent with our heart.
Nothing is more joyous than sincere worship.
Our worship must be consistent with our lifestyle. Perhaps the worst kind of misery is that which comes from disobeying our conscience when our convictions tell us we ought to be obeying it. Living against conscience is the path of sorrow - e.g. King Saul. Our conduct must be consistent with our conscience. There is more than one kind of hypocrite.