Numbers 28:2

Command the children of Israel God here repeats some of the former laws about sacrifices, not without great reason; 1st, Because they had been generally discontinued for thirty-eight years together. 2d, Because the generation to which the former laws had been given about these things was wholly dead, and it was fit the new generation should be instructed about them, as their parents were. 3d, To renew the testimonies of God's grace and mercy, notwithstanding their frequent forfeitures thereof by their rebellion. And, 4th, and principally, Because they were now ready to enter into that land, in which they were obliged to put these things in practice. It is observable that God commands Moses to repeat them in the following order of daily, weekly, monthly, and anniversary sacrifices.