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.