Mark 14:23

And he took a cup, and when he had given thanks, he gave to them: and they all drank of it.

The gospel records leave no doubt of the perpetual obligation imposed upon his followers by this sublime memorial, composed not of stones, or towers, but of bread and wine, such humble, commonplace articles being transmuted by the Saviour's employment of them into the most sacred symbols of Christianity and the vicarious sufferings of the Son of God. Note that not bread alone, nor the cup alone, but both together comprise the privilege and duty of them that follow Jesus. No man can be true to Christ and faithless with regard to observance of the Lord's Supper.