"Most bitter"

1. Jer. 6: 26
   26 ¶ O daughter of my people, gird thee with sackcloth, and wallow thyself in ashes: make thee mourning, as for an only son, most bitter lamentation: for the spoiler shall suddenly come upon us.
2. Jacob 5: 52, 57
   52 Wherefore, let us take of the branches of these which I have planted in the nethermost parts of my vineyard, and let us graft them into the tree from whence they came; and let us pluck from the tree those branches whose fruit is most bitter, and graft in the natural branches of the tree in the stead thereof.
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   57 And the Lord of the vineyard said unto the servant: Pluck not the wild branches from the trees, save it be those which are most bitter; and in them ye shall graft according to that which I have said.
3. Alma 38: 8
   8 And it came to pass that I was three days and three nights in the most bitter pain and anguish of soul; and never, until I did cry out unto the Lord Jesus Christ for mercy, did I receive a remission of my sins. But behold, I did cry unto him and I did find peace to my soul.
4. JS-H 1: 23
   23 It caused me serious reflection then, and often has since, how very strange it was that an obscure boy, of a little over fourteen years of age, and one, too, who was doomed to the necessity of obtaining a scanty maintenance by his daily labor, should be thought a character of sufficient importance to attract the attention of the great ones of the most popular sects of the day, and in a manner to create in them a spirit of the most bitter persecution and reviling. But strange or not, so it was, and it was often the cause of great sorrow to myself.