Sad sad sad

It is painful to watch my cat, Palui. It seems he may be on the last of his lives. I am very saddened about this and because I have too many rescued cats at home, I cant afford to take him to the vet. I still keep him in the house, I try to make him comfortable, but he barely moved from where I put him this morning, He is still breathing..slowly his heart beat is not normal so I know that he wont make it in the morning and I can see that he is sufferring, his body is so cold, his eyes are dilated. Every hour I go check on him and tell him that its ok for him to go, he let out a little cry. It breaks my heart, then I would tell him that I am sorry, I am sorry that I cant afford to take him to the vet and end his sufferings. Dear God, please please hear me pray, please just take him :'(