But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full. Genesis 15:16
God in his infinite mercy bears long with the transgressors of his law. In the days of Abraham he declared that the idolatrous Amorites should still be spared until the fourth generation; for their iniquity was not yet full, and he could not give command for their destruction. For more than four hundred years he spared them, but when, instead of turning to repentance, they hardened their hearts in iniquity, and made war upon his people, their day of probation closed, and the mandate went forth for their utter extinction. With unerring accuracy, the Infinite One keeps a record of the impiety of nations and individuals. Long is his mercy tendered to them, with calls to repentance; but when their guilt reaches a certain limit, which he has fixed, then mercy ceases her pleadings, and the ministration of wrath begins. LP 318
