is self-distrust; the upper, trust in God. He will never lean all his weight on a prop, who fancies that he can stand alone, or has other stays to hold him up. But Abijah's example teaches us another lesson--that for a vigorous faith, there must be obedience to all God's known will. True, thank God! faith often springs in its power in a soul that is conscious but of sin, but a continuance in disobedience will inevitably kill faith. It was because Abijah and his people had kept 'the charge of the Lord our God,' that they were sure that God was with them. We can only be sure of God to lean on when we are doing His will, and we shall do His will only as we are sure that we lean on Him. Our trust in Him will be strong and operative in the measure in which our lives are conformed to His commandments. Much elaborate dissertation has been devoted to expounding what faith is, and the strong, vivid Scriptural conception of it has been woefully darkened and overlaid with cobwebs of theology, but surely this eloquent metaphor of our text tells us more than do many learned volumes. It bids us lean on God, rest the whole weight of our needs, our weaknesses, and our sins on Him. Like any human friend or helper, He is better pleased when we lean hard on Him than when we gingerly put a finger on His arm, and lay no pressure on it, as we do when in ceremonial fashion we seem to accept another's support, and hold ourselves back from putting a weight on the offered arm. We cannot rely too utterly on Him. We honour Him most when we repose our whole selves on His strong arm. II. The increase of faith by sudden fear. 'When Judah looked back, behold, the battle was before and behind them.' The shock of seeing the flashing spears in the rear would make the bravest hold their breath for one overwhelming moment, but the next moment their faith in God surged back with tenfold force, increased by the sudden new peril. The sharp collision of flint and steel struck out a spark of faith. 'What time I am afraid, I will trust in Thee,' said an expert in the genesis and growth of trust. Peril kills a feeble trust, but vivifies it, if strong. The recognition of danger is meant to drive us to God. If each fresh difficulty or danger makes us tighten our clasp of Him, and lean the harder on Him, it has done its highest service to us, and we have conquered it, and are the stronger because of it. The storm that makes the traveller, fighting with the wind and the rain in his face, clasp his cloak tighter round him, does him no harm. The purpose of our trials is to drive us to God, and a fair-weather faith which had all but fallen asleep is often roused to energy that works wonders, by the sudden dash of danger flung into and disturbing a life. It is wise seamanship to make a run to get snugly behind the breakwater when a sudden gale springs up. III. The expression of faith in appeal to God.