Hence, we read, "The priest shall go forth out of the camp." It is not said, The leper shall go. This was wholly out of the question. It was of no use talking to the leper about going or doing. He was consigned to dreary solitude; whither could he go? He was involved in helpless defilement; what could he do? He might long for fellowship and long to be clean, but his longings were those of a lonely helpless leper. He might make efforts after cleansing, but his efforts could but prove him unclean, and tend to spread defilement. Before ever he could be pronounced "clean," a work had to be wrought for him--a work which he could neither do nor help to do--a work which had to be wholly accomplished by another. The leper was called to "stand still" and behold the priest doing a work in virtue of which the leprosy could be perfectly cleansed. The priest accomplished _all_: the leper did _nothing_. "Then shall the priest command to take for him that is to be cleansed, two birds, alive and clean, and cedar-wood, and scarlet, and hyssop. And the priest shall command that one of the birds be killed in an earthen vessel over running water." In the priest going forth from the camp--forth from God's dwelling-place--we behold the blessed Lord Jesus coming down from the bosom of the Father, His eternal dwelling-place, into this polluted world of ours, where He beheld us sunk in the polluting leprosy of sin. He, like the good Samaritan, "came where we were." He did not come half-way merely; He did not come nine-tenths of the way; He came all the way. This was indispensable. He could not consistently with the holy claims of the throne of God have bidden our leprosy to depart had He remained in the bosom. He could call worlds into existence by the word of His mouth, but when leprous sinners had to be cleansed, something more was needed. "God so loved the world, that He gave His only begotten Son." When worlds were to be framed, God had but to speak; when sinners had to be saved, He had to give His Son. "In this was manifested the love of God towards us, because that God sent His only begotten Son into the world, that we might live through Him. Herein is love, not that we loved God, but that He loved us, and sent His Son to be the propitiation for our sins." (1 John iv. 9, 10.)