(one's) life is in (someone's) hands(redirected from one's life is in someone's hands)
(one's) life is in (someone's) hands
One's life, livelihood, or wellbeing is at the mercy and discretion of someone else. Please, doctor, you're the only one who can repair the damage to our daughter's heart. Her life is in your hands! We've transferred all of our savings over to be put into the investment. My family's lives are in your hands now.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
your life is in someone's hands
If your life is in someone's hands, they have complete control over whether you live or die. The realization that another woman's life may be in my hands is a frightening one. Note: You can also say that you put your life in someone's hands or that someone holds your life their hands. What makes you think I would put my life in your hands? You feel a responsibility to people because sometimes you're holding their life in your hands.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012