Contentment is not by addition but by subtraction: seeking to add a thing will not bring contentment. Instead, subtracting from your desires until you are satisfied only with Christ brings contentment.
My brethren, the reason why you have not got contentment in the things of the world is not because you have not got enough of them-that is not the reason-but the reason is, because they are not things proportionable to that immortal soul of yours that is capable of God himself.
To be well skilled in the mystery of Christian contentment is the duty, glory and excellence of a Christian.