Concerning the Sin Nature   "Though grace has entered, yet corruption is not expelled: though [Christians] have got the new creature, yet much of the old corrupt nature remains; and these struggle together within them, as the twins in Rebekah's womb (Gal. 5:17). They find it present with them at all times, and in all places, even in the most retired corners. If a man has a troublesome neighbour, he may remove; if he has an ill servant, he may put him away at the term; if a bad yoke- fellow, he may sometimes leave the house, and be free from molestation that way: but should the saint go into a wilderness, or set up his tent on some remote rock in the sea, where never foot of man, beast, or fowl had touched, there will it be with him. Should he be with Paul, caught up to the third heaven, it will come back with him (II Cor. 12:7). It follows him as the shadow does the body; it makes a blot on the fairest line he can draw."   -- Thomas Boston (1676-1732)