We haven't time for that. I want simply to reiterate one of his great lessons. And that is this. Not by thinking about it. Not by praying about it only, but by taking steps that are the proof of the sincerity of your prayers.
Obedience leads to obedience as surely as sin leads to sin.
God blesses concentrated effort and he blesses those who are wise in the pursuit of what pleases him. Well, just these. You make a vow. A vow is a promise you don't have to make but which, once made, you must keep. It is a biblically approved method of forcing obedience upon a Christian conscience, of making sure that you do something you know you need to do.