it's in verse eleven,as a result of the anguish of his soul he will see it and be satisfied, he'll be satisfied with the rescue operation, he'll be satisfied with what he has accomplished, isaiah says , and jesus uses, perhaps, even more extravagant language, there in luke fifteen, when he says in verse six, in verse mm mm, in verse seven, when he comes home with that sheep that he's rescued with that lost  to to but it now has been found, when he brings it home he says there wi , he says he calls together his friends and his neighbours, saying to them rejoice with me!