Articles of agreement among men are usually sealed, that the covenants may be the more solemn, and the performances of the covenants the more sure, to mutual satisfaction. God therefore, being willing more abundantly to show to the heirs of promise the immutability of his councils, has confirmed his covenant by a seal (Heb 6:17), which makes the foundations we build on stand sure, Ti2 2:19. The seal of this covenant of nature was natural enough; it was the rainbow, which, it is likely, was seen in the clouds before, when second causes concurred, but was never a seal of the covenant till now that it was made so by a divine institution. Now, concerning this seal of the covenant, observe, 1. This seal is affixed with repeated assurances of the truth of that promise of which it was designed to be the ratification: I do set my bow in the cloud (Gen 9:23); it shall be seen in the cloud (Gen 9:14), that the eye may affect the heart and confirm the faith; and it shall be the token of the covenant (Gen 9:12, Gen 9:13), and I will remember my covenant, that the waters shall no more become a flood, Gen 9:15. Nay, as if the Eternal Mind needed a memorandum, I will look upon it, that I may remember the everlasting covenant, Gen 9:16. Thus here is line upon line, that we might have sure and strong consolation who have laid hold of this hope. 2. The rainbow appears when the clouds are most disposed to wet, and returns after the rain; when we have most reason to fear the rain prevailing, then God shows this seal of the promise that it shall not prevail. Thus God obviates our fears with such encouragements as are both suitable and seasonable. 3. The thicker the cloud the brighter the bow in the cloud. Thus, as threatening afflictions abound, encouraging consolations much more abound, Co2 1:5. 4. The rainbow appears when one part of the sky is clear, which intimates mercy remembered in the midst of wrath; and the clouds are hemmed as it were with the rainbow, that they may not overspread the heavens, for the bow is coloured rain or the edges of a cloud gilded. 5. The rainbow is the reflection of the beams of the sun, which intimates that all the glory and significancy of the seals of the covenant are derived from Christ the Sun of righteousness, who is also described with a rainbow about his throne (Rev 4:3), and a rainbow upon his head (Rev 10:1), which intimates, not only his majesty, but his mediatorship. 6. The rainbow has fiery colours in it, to signify that though God will not again drown the world, yet, when the mystery of God shall be finished, the world shall be consumed by fire. 7. A bow bespeaks terror, but this bow has neither string nor arrow, as the bow ordained against the persecutors has (Psa 7:12, Psa 7:13), and a bow alone will do little execution. It is a bow, but it is directed upwards, not towards the earth; for the seals of the covenant were intended to comfort, not to terrify. 8. As God looks upon the bow, that he may remember the covenant, so should we, that we also may be ever mindful of the covenant, with faith and thankfulness.

Whoso sheddeth man's blood, by man shall his blood - Hence it appears that whoever kills a man, unless unwittingly, as the Scripture expresses it, shall forfeit his own life.

A man is accused of the crime of murder; of this crime he is guilty or he is not: if he be guilty of murder he should die; if not, let him be punished according to the demerit of his crime; but for no offense but murder should he lose his life. Taking away the life of another is the highest offense that can be committed against the individual, and against society; and the highest punishment that a man can suffer for such a crime is the loss of his own life. As punishment should be ever proportioned to crimes, so the highest punishment due to the highest crime should not be inflicted for a minor offense. The law of God and the eternal dictates of reason say, that if a man kill another, the loss of his own life is at once the highest penalty he can pay, and an equivalent for his offense as far as civil society is concerned. If the death of the murderer be the highest penalty he can pay for the murder he has committed, then the infliction of this punishment for any minor offense is injustice and cruelty; and serves only to confound the claims of justice, the different degrees of moral turpitude and vice, and to render the profligate desperate: hence the adage so frequent among almost every order of delinquents, "It is as good to be hanged for a sheep as a lamb;" which at once marks their desperation, and the injustice of those penal laws which inflict the highest punishment for almost every species of crime. When shall a wise and judicious legislature see the absurdity and injustice of inflicting the punishment of death for stealing a sheep or a horse, forging a twenty shillings' note, and Murdering A Man; when the latter, in its moral turpitude and ruinous consequences, infinitely exceeds the others?* (* On this head the doctor's pious wish has been realized since this paragraph was written. - Publishers)

And God said, this is the token of the covenant which I make between me and you,.... Meaning the bow in the cloud, and which might be formed in the cloud at this time, that Noah might see it, and know it when he saw it again, and seems to be pointed unto: "this is the token"; or sign of the covenant made between God and Noah, and his sons:

and every living creature that is with you, for perpetual generations; which more clearly shows and proves, that this covenant reaches to all creatures that then were, or should be in all ages, to the end of the world.

Whoso sheddeth man's blood . . . for in the image of God made he man--It is true that image has been injured by the fall, but it is not lost. In this view, a high value is attached to the life of every man, even the poorest and humblest, and an awful criminality is involved in the destruction of it.