Many [Christians] admire growth in grace in others, and wish that they themselves were like them. But they seem to suppose that those who grow are what they are by some special gift or grant from God, and that as this gift is not bestowed on themselves, they must be content to sit still. This is a grievous delusion, and one against which I desire to testify with all my might. I wish it to be distinctly understood that growth in grace is bound up with the use of means within the reach of all believers [including private Scripture reading, private prayer, private meditation, self-examination, regular attendance at Sunday worship, etc.], and that, as a general rule, growing souls are what they are because they use these means.
– J.C. Ryle, Holiness, pp. 109-110.