This chapter is divided into two sections. The first (from verses 1 to 14) has as its main subject the bringing up of the twelve memorial stones from the bed of Jordan; the second (verse 15 to the end) gives the conclusion of the whole incident. The plan of arrangement, already pointed out in a former chapter, is very plain in this. Each section has God's commands to Joshua, Joshua's to the people, and the execution of these. To each is appended a summary, which anticipates the more detailed particulars that follow. Our text begins in the middle of the first section, but we must glance at the preceding verses. These tell how, when the people were all across, Joshua, who had apparently remained on the eastern bank with the twelve representatives of the tribes, received God's command to tell these the purpose for which they had been chosen, and to set them to execute it. This additional instruction is the explanation of the apparent discrepancy between Joshua iii. 12 and iv. 2. Verses 4-8 tell Joshua's communication of the instructions to the men; verse 8 narrates the execution of them by each man's wrenching up from the river's bed a great stone, with which he toiled through the muddy ooze to the western shore, and thence over the hot plain to Gilgal, where the host camped; verse 9 tells that twelve other stones were set up where the priests had stood, and were visible at some time after date, when it was written; but when that was, or whether the verse is part of the original or a later note, we cannot say. At any rate, there were two memorials, one on the bank, one in the stream--'a grand jury of great stones,' as Thomas Fuller calls them. There is no difficulty in supposing that the monument in the river was firm enough to resist its current, and high enough to be visible either above the surface or beneath the ordinarily shallow water.