The article analyses a few texts of the New Testament (Matthew 9.1-8, Mark 2.1-12, Luke 5.17-26, Jacob 5.13-18, 1John 1.8-2.2) that describe certain conditions that allow man to receive forgiveness of sins from God’s side. They are: faith, prayer rooted in faith, anointment in the name of the Lord by priests and confession of sins. What can be concluded from the texts in question is that God is ready to forgive man sins, but what is required is human cooperation. The said texts cast light on certain statements from the New Testament in which forgiveness of sins is accompanied by no conditions and help to understand that God’s mercy call for certain conditions on the sinner’s side.