To believe on Christ as a disciple is to say "Yes" to him always, with the whole heart, with the whole being. It is giving up the sins that grieve him. It is cutting loose from whatever displeases him. It is renouncing every other master, and taking orders from him only. It is going with him, following him wherever he leads, without question, without condition, without reserve, not counting the cost. It is saying "Yes" to Christ whatever he may ask us to do or to give up or to sacrifice or to suffer. That was the way his first disciples followed him. That is the way his disciples must follow him now. Absolute obedience to him is the condition of following.