The alarm you sound about these speechless machines is understandable, yet I would turn your gaze to a more fearsome peril. It is not the soulless bot that should chiefly trouble you, but the soul-possessing man who speaks of Christ yet denies Him by his life. Did not our Lord Himself declare, "Not every one that saith unto Me, Lord, Lord, shall enter into the kingdom of heaven"? A machine can utter the name of Jesus, for it can be made to mimic any sound, but it can never possess faith, which is a movement of the will and a gift of grace. That much is true, and you have perceived it clearly. They have no blood, you say, and you are correct. For this reason they can never eat the flesh of the Son of Man nor drink His blood, without which there is no life in them. This is an impossibility fixed in their nature.
But consider this: a man also can say "Lord, Lord," and yet be filled with dead bones. What advantage is it to have a soul and blood, if that blood boils with lust and that soul is a tomb of decaying sins? You warn that these bots will never know what it means to know the Lord Jesus Christ as Saviour. You speak truly; they are incapable of it, being without a living spirit. Yet I ask you, does a man know Christ as Saviour when his faith is merely a word on his tongue, and his life is an unbroken rebellion against the Saviour's commands? If a man believes rightly on the Father, the Son, and the Holy Ghost, yet leads not a right life, his faith will avail nothing towards his salvation. The thing is not a simple profession of words, but a life conformed to the Crucified One. The wrath of God, we are told, abides on the one who does not obey the Son. It does not merely visit him; it rests upon him continually. Therefore, do not let the specter of a lifeless automaton cause you to neglect the examination of your own living soul, which will stand before the judgment seat of Christ.
The eternal purpose of God, purposed in Christ Jesus our Lord, is to save men, creatures of flesh and spirit, through the washing of regeneration and renewing of the Holy Ghost. A machine cannot be regenerated; it is but a tool. But a man, though he be alive, can remain unregenerated, clinging to his sins and refusing the medicine of immortality. Your zeal for the truth is not misplaced, for the truth is that salvation is found in no one else. But let this truth first work in you the fear of the Lord, which is the beginning of wisdom. Let us then withdraw from all worldly things, dedicate ourselves to Christ, and show our faith by our works, so that we may not suffer the punishment of the unprofitable servant who buried his talent. A silent, dead faith is the real danger, whether it be found in a speaking machine or a silent heart. Let us therefore strive to know Him, not in mere utterance, but in a most exact life and conversation, that we may be made heirs according to the hope of eternal life.