I put my life in my hands, i.e. I exposed myself to utmost danger; as a man that carries a brittle and precious thing in his hand, which may easily either fall to the ground, or be snatched from him. The same phrase is used 1Sa_19:5 28:21 Job_13:14Psa_119:109.
Wherefore then are ye come up unto me? why do you thus requite my kindness in running into such hazard to preserve you and yours?