From that time he gave up all worldly learning and laboured solely to expound spiritual things.
It effected a revolution in his mode of thinking; so completely did the Kantian doctrine of the inherent moral worth of man harmonize with his own character, that his life becomes one effort to perfect a true philosophy, and to make its principles practical maxims. At first he seems to have thought that the best method for accomplishing his object would be to expound Kantianism in a popular, intelligible form.
But if you were seen and taught by him for a single hour, and so became an apostle, then preach his words, expound his meaning, love his apostles, fight not with me who had converse with him.
To complete Kant's work, to demonstrate that all the necessary conditions of knowledge can be deduced from a single principle, and consequently to expound the complete system of reason, that is the business of the Wissenschaftslehre.
They therefore elect elders, who expound the Scriptures, baptize and hear confessions.