2007 5.9 spins but won't start.

Hello. I used my 2007 dodge ram 3500 5.9 to jump off another vehicle and
when i turned the key in the other vehicle to start it, my dodge died instantly. My
check engine light is now flashing and there is a clicking sound coming from
under the hood that seems to be in time with the engine light. Engine will turn
over but will not start. Any help would be greatly appreciated.