"When my servants ask you concerning me, (tell them) I am indeed close (to them). I listen to the prayer of every suppliant when he calls on me." [2:186]
Al-Mujeeb is the Answerer of prayers. This means that it is He who responds to the requests of those who ask by assisting them, to the call of those who call upon Him by answering them, and responds to the plight of the poor with all they need.
Click on the button above "Al-Mujeeb in the Quran" and look at the different examples of dua's being answered by Al-Mujeeb. Pay attention to the characteristics of the prophets mentioned and their etiquette of making dua' (verses 82-90)
The Repentance Lesson can be found in the link below, along with the Four conditions of Repentance: