III. The conduct required from, and the reception met with by, the messengers come next. Christ first enjoins discretion and discrimination of character, so far as possible. The messenger of the kingdom is not to be mixed up with disreputable people, lest the message should suffer. The principle of his choice of a home is to be, not position, comfort, or the like, but 'worthiness'; that is, predisposition to receive the message. However poor the chamber in the house of such, there is the apostle to settle himself. 'If ye have judged me to be faithful, come into my house,' said Lydia. The less Christ's messengers are at home with Christ's neglecters, the calmer their own hearts, and the more potent their message. They give the lie to it, if they voluntarily choose as their associates those to whom their dearest convictions are idle. Christian charity does not blind to distinctions of character. A little common sense in reading these will save many a scandal, and much weakening of influence. Christian earnestness does not abolish courtesy. The message is not to be blurted out in defiance of even conventional forms. Zeal for the Lord is no excuse for rude abruptness. But the salutation of the true apostle will deepen the meaning of such forms, and make the conventional the real expression of real goodwill. No man should say 'Peace be unto you' so heartily as Christ's servant. The servant's benediction will bring the Master's ratification; for Jesus says, '_Let_ your peace come upon it,' as if commanding the good which we can only wish. That will be so, if the requisite condition is fulfilled. There must be soil for the seed to root in. But no true wish for others' good--still more, no effort for it--is ever void of blessed issue. If the peace does not rest on a house into which jarring and sin forbid its entrance, it will not be homeless, but come back, like the dove to the ark, and fold its wings in the heart of the sender. The reflex influence of Christian effort is precious, whatever its direct results are. How the Church has been benefited by its missionary enterprises!