Again the key changes, and the minor is modulated into confident petition. It is the test of true trust that it is deepened by the fullest recognition of dangers and enemies. The same facts may feed despair and be the fuel of faith. This man's eyes took in all surrounding evils, and these drove him to avert his gaze from them and fix it on Jehovah. That is the best thing that troubles can do for us. If they, on the contrary, monopolise our sight, they turn our hearts to stone; but if we can wrench our stare from them, they clear our vision to see our Helper. In vv. 14-18 we have the recoil of the devout soul to God, occasioned by its recognition of need and helplessness. This turn of the psalm begins with a strong emphatic adversative: "But I--I trust in Jehovah." We see the man flinging himself into the arms of God. The word for "trust" is the same as in ver. 6, and means to _hang_ or _lean upon_, or, as we say, to _depend on_. He utters his trust in his prayer, which occupies the rest of this part of the psalm. A prayer, which is the voice of trust, does not begin with petition, but with renewed adherence to God and happy consciousness of the soul's relation to Him, and thence melts into supplication for the blessings which are consequences of that relation. To feel, on occasion of the very dreariness of circumstances, that God is mine, makes miraculous sunrise at midnight. Built on that act of trust claiming its portion in God, is the recognition of God's all-regulating hand, as shaping the psalmist's "times," the changing periods, each of which has its definite character, responsibilities, and opportunities. Every man's life is a series of crises, in each of which there is some special work to be done or lesson to be learned, some particular virtue to be cultivated or sacrifice made. The opportunity does not return. "It might have been once; and we missed it, lost it for ever."