live up to (one's) end of the bargain
To do as was promised in an agreement or bargain; to carry through with what one agreed to do. I've delivered the cash as you instructed. Now you have to live up to your end of the bargain! We've done the work on our end, I just hope their team lives up to their end of the bargain!
live up to one's end of the bargain
and keep one's side of the bargain; live up to one's side of the bargain; keep one's end of the bargainto carry though on a bargain; to do as was promised in a bargain. You can't quit now. You have to live up to your end of the bargain. Bob isn't keeping his end of the bargain, so I am going to sue him.