life is in hands

your life is in somebody's hands

if your life is in someone's hands, that person is completely responsible for what happens to you, often for whether you live or die When you fly, your life is in the hands of complete strangers.
See you can bet your life bottom dollar, breathe life into, can't to save life, depart this life, risk life and limb, see life, set up for life
See also: hand, life