For it shall be, [that] on the day thou goest out
Out of the city of Jerusalem: and passest over the brook Kidron: which is particularly mentioned, because this lay in his way to Bahurim, his native place; he must cross that to go to it, see ( 2 Samuel 15:23 ) ( 16:5 ) ; and where it might reasonably be supposed he would some time or another be inclined to go, through business, or a desire to see it again:
thou shalt know for certain that thou shall surely die:
it may be depended on as what will be most certainly the case; no reprieve nor pardon will be granted:
thy blood shall be on thine own head;
fair warning being given, he could blame none but himself, should he be guilty and suffer.