Exodus 24:6

The blood was divided into two parts. One half was swung by Moses upon the altar (זרק to swing, shake, or pour out of the vessel, in distinction from הזּה to sprinkle) the other half he put into basins, and after he had read the book of the covenant to the people, and they had promised to do and follow all the words of Jehovah, he sprinkled it upon the people with these words: "Behold the blood of the covenant, which Jehovah has made with you over all these words." As several animals were slaughtered, and all of them young oxen, there must have been a considerable quantity of blood obtained, so that the one half would fill several basins, and many persons might be sprinkled with it as it was being swung about. The division of the blood had reference to the two parties to the covenant, who were to be brought by the covenant into a living unity; but it had no connection whatever with the heathen customs adduced by Bhr and Knobel, in which the parties to a treaty mixed their own blood together. For this was not a mixture of different kinds of blood, but it was a division of one blood, and that sacrificial blood, in which animal life was offered instead of human life, making expiation as a pure life for sinful man, and by virtue of this expiation restoring the fellowship between God and man which had been destroyed by sin. But the sacrificial blood itself only acquired this signification through the sprinkling or swinging upon the altar, by virtue of which the human soul was received, in the soul of the animal sacrificed for man, into the fellowship of the divine grace manifested upon the altar, in order that, through the power of this sin-forgiving and sin-destroying grace, it might be sanctified to a new and holy life. In this way the sacrificial blood acquired the signif…

Moses, as mediator between God and Israel, having received divers laws and ordinances from God privately in the three foregoing chapters, in this chapter, I. Comes down to the people, acquaints them with the laws he had received, and takes their consent to those laws (Exo 24:3), writes the laws, and reads them to the people, who repeat their consent (Exo 24:4-7), and then by sacrifice, and the sprinkling of blood, ratifies the covenant between them and God (Exo 24:5, Exo 24:6, Exo 24:8). II. He returns to God again, to receive further directions. When he was dismissed from his former attendance, he was ordered to attend again (Exo 24:1, Exo 24:2). He did so with seventy of the elders, to whom God made a discovery of his glory (Exo 24:9-11). Moses is ordered up into the mount (Exo 24:12, Exo 24:13); the rest are ordered down to the people (Exo 24:14). The cloud of glory is seen by all the people on the top of mount Sinai (Exo 24:15-17), and Moses is therewith God forty days and forty nights (Exo 24:18).

24:6 When Moses splattered half of the blood of the sacrificial animals against the altar, he symbolized God’s formal oath to keep the covenant (see Gen 15:9-18; Heb 6:13).