Talmud su Isaia 57:19

It happened that the son of Rabban Gamliel fell ill and he sent two scholars to Rebbi Ḥanina ben Dosa in the latter’s city. He said to them, wait until I go to the upper floor. He went to the upper floor, came back, and said to them: I am sure that Rabban Gamliel’s son will get respite from his sickness. They noted that at this hour he asked for food¹⁷⁷In the Babli (34b) he is reported to have asked for water.. Rebbi Samuel ben Rebbi Naḥmani said: If you were able to concentrate your attention on your prayer, you are told that your prayer was heard. What is the reason? (Ps. 10:17) “You prepare their hearts, You will listen with Your ears.¹⁷⁸The first “you” refers to the person, the others to God.” Rebbi Joshua ben Levi said: If a person’s lips bore fruit¹⁷⁹Not only that he concentrated his attention as required by R. Samuel ben Naḥmani, but that his lips produced a well-formed result. he is told that his prayer was heard. What is the reason? (Is. 57:19) “He Who created the fruit of lips: peace, peace to the far and the near said the Eternal, I shall heal him.”