What could I have done more for my vineyard?

1. Isa. 5: 4
   4 What could have been done more to my vineyard, that I have not done in it? wherefore, when I looked that it should bring forth grapes, brought it forth wild grapes?
2. 2 Ne. 15: 4
   4 What could have been done more to my vineyard that I have not done in it? Wherefore, when I looked that it should bring forth grapes it brought forth wild grapes.
3. Jacob 5: 41, 47, 49
   41 And it came to pass that the Lord of the vineyard wept, and said unto the servant: What could I have done more for my vineyard?
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   47 But what could I have done more in my vineyard? Have I slackened mine hand, that I have not nourished it? Nay, I have nourished it, and I have digged about it, and I have pruned it, and I have dunged it; and I have stretched forth mine hand almost all the day long, and the end draweth nigh. And it grieveth me that I should hew down all the trees of my vineyard, and cast them into the fire that they should be burned. Who is it that has corrupted my vineyard?
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   49 And it came to pass that the Lord of the vineyard said unto the servant: Let us go to and hew down the trees of the vineyard and cast them into the fire, that they shall not cumber the ground of my vineyard, for I have done all. What could I have done more for my vineyard?