The real task of the call of Truth—conveying the message of God to a specific group—is fulfilled when the preacher proves that he is quite serious about his goals and finally makes the Truth known, with the help of sound reasoning. If the preacher rationalises the question of Truth according to the standard of the time, he bears full testimony to the Truth, and unmindful of gain or loss, he continues his preaching, tolerating all kinds of trouble and unpleasantness. Thereafter, the process of conclusive argument in relation to the addressee- community is completed; after which nobody will have the excuse of ignorance before God. The real work of a preacher lies in his adherence to divine revelations, that is, in conducting himself personally at the behest of our Lord and also repeatedly calling upon others to strive to bow to the will of the Lord in order to earn His pleasure. The preacher must keep this up continuously with patience, wisdom and well-wishing. After this, all the stages that remain are directly under the purview of God. Any further step on the part of the preachers will be proper only when God Himself has taken some decision upon it and has made His will quite clear. God’s decision always appears in the shape of circumstances. When, according to God’s assessment, a preacher’s missionary work has reached the required stage, God causes such changes in the situation as enable the preacher to enter the next phase of his preaching.