something keeps draining my battery,alternator is good N i've replace 3x starter

What is your question?

can someone help me with this matter? I turned on my car and started just fine, i went to do a couple of stores with my kids and right on our way back home, the truck wont star. I tried jump starting it with a emergency jumper, someone gave me cable, and it wont even crank or make a noise. i was ready to call the tow truck but i decide to start it one more time after a couple of minutes and it did started. this happens a lot lately. I disconeted the alarm but it just keep happening. please help me. thanks everyone