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Our Lord Jesus taught, practiced, and commanded. His teaching was perfectly true and wise; his conduct was perfectly good and right; his directions were perfectly just and authoritative. His instructions were sometimes verbal, sometimes by example, and sometimes symbolical. Christ taught the lesson of humility not only by words, but in his whole demeanor and conduct; nor was this all, for he illustrated his lesson, now by setting a little child in the midst of his disciples as an example, and again by washing the feet of his apostles. Many were the means he used to impress this and other lessons of moral excellence upon his disciples. But he always insisted that true discipleship was not in an intellectual acquaintance with his teaching, but in a cheerful compliance with his will. As Lord of all, he sought to bring the whole nature under his control; and as their Master and Lord, he assured them with authority that their true welfare lay in their not only knowing, but in their doing, his commandments.

I. KNOWLEDGE. Man is made to know. It is his privilege and prerogative to exercise his understanding and reason. Truth is within man's reach - not all truth, but certainly such as is most necessary for his well-being. Of all knowledge, none is so valuable as the knowledge of God in Christ. The highest truth is presented in our Lord's life, his deeds arid words, his sufferings and glory. He is the one great Lesson for mankind to study and to learn. The twelve had abundant means of knowing Christ, of becoming acquainted with his character and his will. But through our possession of the New Testament we have sufficient opportunities of learning Christ. In order that our knowledge may be complete, as far as our position allows, we must study the Savior and his revelation of himself, his declaration of his will, with reverence and meekness, with faith and prayer.

II. PRACTICE. Our nature is not only intellectual; it is also active. Our life is not one of pure contemplation; it is eminently practical. Knowledge without corresponding conduct is vain, is even worse than ignorance. It is like steam which is generated in the boiler, but which is not brought to bear as motive power upon an engine. It is like the blossom which in itself is beautiful, but which is followed by no fruit. Those who believe that there is a revelation should receive it. Those who are convinced that Christ is the Son of God should live by faith in him. Those who are persuaded that Christ's law is the highest standard of morality should obey that law and conform to that standard. Those who believe that there is a future life, and that they are accountable to a righteous Judge, should prepare for judgment and for immortality. Knowledge without corresponding conduct is seen to be useless in every department of life; how reprehensible must it be in religion! A young man may study law through a long series of years, and under the superintendence of able practitioners; of what avail is his knowledge if, when the time comes for him to act for himself, he cannot draw a deed in chambers, or construct a defense for a client in court? The pupil of an engineer may have a good knowledge of mathematics, may be able to make accurate drawings of other men's work; but is his theoretical ability of service to him in practice? That is the important question; for no one will employ a man to build a bridge, or to bore a tunnel, unless he has shown himself capable of carrying out such works. A cadet may pass the preliminary examinations, may study the art of fortification, the laws of projectiles, the tactics adopted by famous generals in historical campaigns; but all this is preparatory to actual warfare, and he will have studied to good purpose only if, when the time comes, when some unexpected responsibility falls upon him, he is able to lead a force or to defend a city. In like manner young people are taught the Scriptures, are made familiar with the doctrines, the principles, the laws of Christianity. To what end? Surely with the intention that they may not merely call Jesus Master and Lord, but that they may do the things which he bids.

III. BLESSEDNESS. It is wrong to make happiness the one great end of life. Yet happiness is a merciful addition to life - an ornament and a recompense appointed by a benevolent Providence. It is remarkable how often the Lord Jesus pronounced those happy who shared his character and obeyed his will. The pursuit and acquirement of knowledge are attended with happiness; but the truest happiness is the fruit of obedience.

1. This appears from the consideration that those who know and do Christ's will employ all their powers in true harmony. The capacity for knowledge and the faculty for action in such a case work together towards an end, and such co-operation he who made our nature has designed to be productive of a tranquil joy. "This man," says James, speaking of the doer of the work, "shall be happy in his doing."

2. They who know and do Christ's will are happy, because they have a good conscience. If a man feels and says, "I know that I ought to follow such a line of conduct, but I confess that I do not carry out my convictions," how can he have peace? The conviction and reproof of the inward monitor will not let him rest. On the other hand, when there is no schism between knowledge and practice, the voice of conscience speaks approval, and such approbation is blessedness indeed.

3. Obedience as the fruit of knowledge is accepted and commended by the Lord Christ. His approving smile rests upon his true and loyal disciple and servant, who takes up his cross, when so summoned, and follows his Lord. Hereafter the blessedness shall be perfect, for Christ shall say to the faithful servant, "Enter thou into the joy of thy Lord." - T.

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KJV: If ye know these things, happy are ye if ye do them.

WEB: If you know these things, blessed are you if you do them.