I need not remind you, I suppose, how this darkest moment of David's fortunes was the moment at which the darkness broke. Three days after this _emeute_ of his turbulent followers, there came a fugitive into the camp with news that Saul was dead and David was king. So it was not in vain that he had 'strengthened himself in the Lord his God.' Our 'light affliction which is but for a moment' leads on to a manifestation of the true power of God our Friend, and to the breaking of the day.
III. And now the last thing to be noted is the effort by which this assurance is attained and sustained.
The words of the original convey even more forcibly than those of our translation the thought of David's own action in securing him the hold of God as his. He 'strengthened _himself_ in the Lord his God.' The Hebrew conveys the notion of effort, persistent and continuous; and it tells us this, that when things are as black as they were round David at that hour--it is not a matter of course, even for a good man, that there shall well up in his heart this tranquillising and victorious conviction; but he has to set himself to reach and to keep it. God will give it, but He will not give it unless the man strains after it. David 'strengthened himself in the Lord,' and if he had not doggedly set about resisting the pressure of circumstances, and flinging himself as it were, by an effort, into the arms of God, circumstances would have been too strong for him, and despair would have shrouded his soul. In the darkest moment it is possible for a man to surround himself with God's light, but even in the brightest it is not possible to do so unless he makes a serious effort.
That effort must consist mainly in two things. One is that we shall honestly try to occupy our minds, as well as our hearts, with the truth which certifies to us that God is, in very deed, ours. If we never think, or think languidly and rarely, about what God has revealed to us, by the word and life and death and intercession of Jesus Christ, concerning Himself, His heart of love towards us, and His relations to us, then we shall not have, either in the time of disaster or of joy, the blessed sense that He is indeed ours. If a man will not think about Christian truth he will not have the blessedness of Christian possession of God. There is no mystery about the road to the sweetness and holiness and power that may belong to a Christian. The only way to win them is to be occupied, far more than most of us are, with the plain truths of God's revelation in Jesus Christ. If you never think about them they cannot affect you, and they will not make you sure that God is yours.
But we cannot occupy ourselves with these truths unless we have a distinct and resolute purpose running through our lives, of averting our eyes from the things that might make us lose sight of them and of Him. David had his choice. He could either, as a great many of us do, stand there and look, and look, and look, and see nothing but his disasters, or he could look past them; and see beyond them God. Peter had his choice whether he would look at the water, or whether he would look at Jesus Christ. He chose to look at the water; 'and when he saw the wind boisterous he began to sink'--of course, and when he looked at Christ and cried: 'Lord, save me!' he was held up--equally of course. Make the effort not to let the sorrowful things, or the difficult things, or the fearful things, or the joyous things, in your life, absorb you, but turn away, and, as the writer of the Epistle to the Hebrews says, in another connection, 'look off unto Jesus, the Author and Finisher of faith.' David had to put constraint upon himself, to admit any other thoughts into his mind than those that were pressed into it by the facts before his eyes; but he put on the constraint, and so he was encouraged because he encouraged himself.