The central thought of Jeremiah's text is beautifully illustrated in the Parable of the Lost Piece of Silver. Look at this woman's anxious concern and corresponding action; she lights the candle--that is, uses what light she has; she sweeps the house--turns everything over; she searches diligently--keeps at it, not giving up at the first disappointment. Observe also the effect upon herself when her search is successful. Full of satisfaction she calls in her neighbours and friends--'Rejoice with me, for I have found the piece which I had lost'. Loud in her testimony, she delights in making her blessing known. You see, this woman so valued the piece of silver, that she gave herself up to the search for it, and nothing satisfied her until she found it. When men appreciate the importance of having a clean heart and the blessing of God like that, they will not seek long without result. There are two or three things implied in this whole-hearted search after God which need to be emphasized. Of these I will name, first, _intensity of desire_. There are blessings that come like God's rain and sunshine, sought or unsought; but no man ever got a clean heart who did not badly want it; and if God is to sanctify and keep you in the enjoyment of the blessing, your heart will have to be moved by strong desire. Jesus put it clearly when He talked about 'hungering and thirsting'. Even prayer, without strong desire, does not accomplish much. 'What things soever ye _desire_'; it is that which gives intensity to your prayers, as well as 'believing that ye receive'. The Psalmist's words are equally fitting--'As the hart panteth after the water brooks'--as the hunted deer longs for the stream--'so panteth my soul after Thee, O God'. That means more than a contention for the doctrine, more than a sentimental admiration of Holiness. It implies the deep stirrings of conviction, the heart moved by strong cravings, the crying out, 'Oh, that I might find Him whom my soul desireth'! This whole-hearted seeking the blessing also implies _fullness of intention_. How often I have spoken of the relation of the will; the choice, the setting of the mind in strong purpose, the decision--'I ought, I must, I will secure God's sanctifying blessing'; all this counts for much. People speak of their desires and hopes, but how slow they are to make up their minds that, at all costs, they will seek and find a Saviour, by whose power they shall be fully delivered, and kept in purity and fellowship with God. I like those Bible words about 'sincerity', 'following the Lord fully', 'cleaving unto Him with full purpose of heart', for it is to people in that state of mind that God reveals Himself.