The Master next proceeded to instruct with particular directness those upon whom would devolve the responsibility of the ministry as His commissioned representatives. "Ye are the salt of the earth," said He. Salt is the great preservative; as such it has had practical use since very ancient times. Salt was prescribed as an essential addition to every meat offering under the Mosaic law.[524] Long before the time of Christ, the use of salt had been accorded a symbolism of fidelity, hospitality, and covenant.[525] To be of use salt must be pure; to be of any saving virtue as salt, it must be salt indeed, and not the product of chemical alteration or of earthy admixture, whereby its saltiness or "savor" would be lost;[526] and, as worthless stuff, it would be fit only to be thrown away. Against such change of faith, against such admixture with the sophistries, so-called philosophies, and heresies of the times, the disciples were especially warned. Then, changing the figure, Jesus likened them to the light of the world, and enjoined upon them the duty of keeping their light before the people, as prominently as stands a city built upon a hill, to be seen from all directions, a city that cannot be hid. Of what service would a lighted candle be if hidden under a tub or a box? "Let your light so shine before men," said He, "that they may see your good works, and glorify your Father which is in heaven."
That they should make no error as to the relationship of the ancient law and the gospel of the kingdom which He was elucidating, Jesus assured them that He had not come to destroy the law nor to nullify the teachings and predictions of the prophets, but to fulfil such and to establish that for which the developments of the centuries gone had been but preparatory. The gospel may be said to have destroyed the Mosaic law only as the seed is destroyed in the growth of the new plant, only as the bud is destroyed by the bursting forth of the rich, full, and fragrant flowers, only as infancy and youth pass forever as the maturity of years develops. Not a jot or a tittle of the law was to be void. A more effective analogy than the last could scarcely have been conceived; the jot or yod, and the tittle, were small literary marks in the Hebrew script; for present purposes we may regard them as equivalent to the dot of an "i" or the cross of a "t"; with the first, the jot, our English word "iota," signifying a trifle, is related. Not even the least commandment could be violated without penalty; but the disciples were admonished to take heed that their keeping of the commandments was not after the manner of the scribes and Pharisees, whose observance was that of ceremonial externalism, lacking the essentials of genuine devotion; for they were assured that by such an insincere course they could "in no case enter into the kingdom of heaven."
THE LAW SUPERSEDED BY THE GOSPEL.[527]
The next section of the sermon deals with the superiority of the gospel of Christ over the law of Moses, and contrasts the requirements of the two in particular instances. Whereas the law forbade murder, and provided a just penalty for the crime, Christ taught that one's giving way to anger, which might possibly lead to violence or even murder, was of itself a sin. To maliciously use an offensive epithet such as "Raca" laid one liable to punishment under the decree of the council, and to call another a fool placed one "in danger of hell fire." These objectionable designations were regarded at that time as especially opprobrious and were therefore expressive of hateful intent. The murderer's hand is impelled by the hatred in his heart. The law provided penalty for the deed; the gospel rebuked the evil passion in its incipiency. To emphasize this principle, the Master showed that hatred was not to be atoned by a material sacrifice; and that if one came to make an offering at the altar, and remembered that he was at enmity with his brother, he should first go to that brother and be reconciled, even though such a course involved the interruption of the ceremonial, which was a particularly grievous incident according to the judgment of the priests. Differences and contentions were to be adjusted without delay.
The law forbade the awful sin of adultery; Christ said that the sin began in the lustful glance, the sensual thought; and He added that it was better to become blind than to look with evil eye; better to lose a hand than to work iniquity therewith. Touching the matter of divorcement, in which great laxity prevailed in that day, Jesus declared that except for the most serious offense of infidelity to marriage vows, no man could divorce his wife without becoming himself an offender, in that she, marrying again while still a wife not righteously divorced, would be guilty of sin, and so would be the man to whom she was so married.
Of old it had been forbidden to swear or take oaths except in solemn covenant before the Lord; but in the gospel dispensation the Lord forbade that men swear at all; and the heinousness of wanton oaths was expounded. Grievously sinful indeed it was and is to swear by heaven, which is the abode of God; or by earth, which is His creation and by Him called His footstool; or by Jerusalem, which was regarded by those who swore as the city of the great King; or by one's own head, which is part of the body God has created. Moderation in speech, decision and simplicity were enjoined, to the exclusion of expletives, profanity and oaths.
Of old the principle of retaliation had been tolerated, by which one who had suffered injury could exact or inflict a penalty of the same nature as the offense. Thus an eye was demanded for the loss of an eye, a tooth for a tooth, a life for a life.[528] In contrast, Christ taught that men should rather suffer than do evil, even to the extent of submission without resistance under certain implied conditions. His forceful illustrations—that if one were smitten on one cheek he should turn the other to the smiter; that if a man took another's coat by process of law, the loser should allow his cloak to be taken also; that if one was pressed into service to carry another's burden a mile, he should willingly go two miles; that one should readily give or lend as asked—are not to be construed as commanding abject subserviency to unjust demands, nor as an abrogation of the principle of self-protection. These instructions were directed primarily to the apostles, who would be professedly devoted to the work of the kingdom to the exclusion of all other interests. In their ministry it would be better to suffer material loss or personal indignity and imposition at the hands of wicked oppressors, than to bring about an impairment of efficiency and a hindrance in work through resistance and contention. To such as these the Beatitudes were particularly applicable—Blessed are the meek, the peace-makers, and they that are persecuted for righteousness' sake.
Of old it had been said: "Love thy neighbour, and hate thine enemy";[529] but the Lord now taught: "Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you." This was a new doctrine. Never before had Israel been required to love their foes. Friendship for enemies had found no place in the Mosaic code: indeed the people had grown to look upon Israel's enemies as God's enemies; and now Jesus required that tolerance, mercy, and even love be meted out to such! He supplemented the requirement by an explanation—through the course indicated by Him men may become children of God, like unto their Heavenly Father to the extent of their obedience; for the Father is kind, long-suffering and tolerant, causing His sun to shine on the evil and on the good, and sending rain for the sustenance of both just and unjust.[530] And further, what excellence has the man who gives only as he receives, acknowledges only those who salute him with respect, loves only as he is loved? Even the publicans[531] did that much. Of the disciples of Christ much more was expected. The admonition closing this division of the discourse is an effective and comprehensive summary of all that had preceded: "Be ye therefore perfect, even as your Father which is in heaven is perfect."[532]