Buying grapes is a tricky thing. They can look sweet, ripe & juicy and you throw one in your mouth and BAM- your lips pucker and your face screws up. I hate sour grapes. I tend to avoid grapes altogether because I hate sour ones so much.
But, oh, the joy of a good, sweet grape that almost pops when you bite into it.
John 15:5 "I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing."
I really don't want to be a sour grape in anybody's life.