And I will clothe him with thy robe, and strengthen him with thy girdle, and I will commit thy government into his hand: and he shall be a father to the inhabitants of Jerusalem, and to the house of Judah. And the key of the house of David will I lay upon His shoulder; so He shall open, and none shall shut; and He shall shut, and none shall open. And I will fasten Him as a nail in a sure place; and He shall be for a glorious throne to His Father's house. (Isaiah 22:21-23)
The Church is to carry out that mission as well, to preach the Gospel and be salt and light in this dark and dying world. Many in the visible church have abandoned that mission for popularity and outward growth that is not necessarily a blessing of GOD, but a symptom of man and his sinful desire for religion and spirituality without GOD. Many that call on His Name, have created a god of their own making, and the worship of that god is idolatry. They don't really know Christ, and all their religion will not save them. They are as lost and bound for a devil's Hell as the atheist pagan, or agnostic secularist who also have their 'religion'.
Religion will not save you, ritual will not deliver you from your sIn, only with the Righteousness of Christ which comes from His perfect work on the Cross of Calvary can you be redeemed and born again. When you recognize your need of Jesus Christ and surrender to Him on His terms and not your own then He performs a work of Salvation in you that cannot be undone, nor can we do it ourselves. Believe Him and receive Him today.
If you are one of His, tell others that they might know and believe.