Surrounding circumstances, moreover, tend powerfully to help or to hinder the growth of the new life. The seed grows indeed by its own vitality: the most favourable circumstances that are possible on earth could not produce a harvest of grace without the seed of the Word; but these circumstances go far instrumentally to help or to hinder the growth and ripening of the seed. The family of which you are a member, either as child or servant,--the Church with which you worship,--the companions with whom you associate,--the tone of the society in which your social life moves on,--the business that occupies your day,--and the amusements that refresh you when you are wearied;--these and many others affect for good or evil the growth of grace in Christians, as wet or dry, cold or warm seasons, affect the growth of the seed after it has been committed to the ground. Watch and pray; one of these small points may be the turning-point of your destiny. The seed grows gradually from stage to stage. Three stages are specified; first the blade, then the ear, then the full corn in the ear. This does not determine the time occupied in the spiritual process. In this respect there is not uniformity: the spiritual growth from spring to maturity sometimes requires more than one natural season, and sometimes is accomplished in less. In the first stage of growth, it is not easy to distinguish with certainty between the wheat and common grass; it is when the ear is formed and filled, that you know at a glance, which is the fruitful and which the fruitless plant There is a similar ambiguity, in as far as appearance is concerned, in the earliest outgrowth of convictions from the hearing of the word. Not that there is any uncertainty in the nature of the things: the wheat is wheat, and the grass is grass from the first: but an observer cannot so surely at first determine which is wheat, and which is merely grass. Thus, many hopeful impressions that appear for a while in the young, die away, and bring forth no fruit; but at later stages, a judgment may be formed with greater confidence. The plant assumes by degrees a more definite form, and a more substantial fulness: the fruits of the Spirit, green at first, but growing gradually more and more mellow, crown the profession of a Christian.