To turn against

To direct against; as, to turn one's arguments against himself.
To make unfavorable or hostile to; as, to turn one's friends against him.
to become unfriendly or hostile to.
- Shak.

See also: Turn, Turn, Turn

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
The monster had fled up the gutter-spout like a cat or a convict who--everybody knew that also--would scale the very skies, with the help of a gutter-spout....No doubt Erik was at that time contemplating some decisive step against Raoul, but he had been wounded and had escaped to turn against poor Christine instead.
But although his adopted city turned against him, he refused to turn against it.
Words promising a turnaround in the future but words echoing the feeling of fans who are gradually beginning to turn against the manager.
The secular rebels' decision to turn against the Islamic State in Iraq and the Levant (ISIL) was perhaps a positive move to convince the world that the moderate Syrian opposition would not tolerate extremists ruling over them.
"It needs to turn against Corby, because every game we don't win, we make it more difficult on ourselves and, obviously, you would like to have points in the bag."
So it was pathetic of her bandmates to initially support her decision to go it alone, only to turn against her later.
This could have been nothing more than a border incident had Iran not been backing up the Houthis with money and arms and inciting them to turn against Yemeni authorities.
Israeli Prime Minister Ehud Olmert appealed to the people of Gaza to turn against their Hamas rulers.
Even our friends seem to turn against us, and we feel that we are all alone.
Researchers have long puzzled over what causes the body to turn against itself in type 1 diabetes, an autoimmune disease that destroys insulin-secreting cells in the pancreas.
The tide is starting to turn against the IRS because it has lost two Tax Court cases on this question--Northern v.
He said: "We have come through a lot together over the years and it would be a great pity if some supporters were to turn against me without having heard the full story.