Our psalm describes in detail both a person’s trust in God and the kindness and protection that God grants him.
The question that arises is regarding the subject of our psalm. Is it the person of faith himself who is the speaker here? Is the psalmist presenting the man of faith in the third person? Perhaps the man of faith is being addressed by the psalmist in second person. All three of the above possibilities appear in the psalm, and they are constantly being exchanged.
Generally speaking, exegetical efforts are aimed towards blurring the transition from one speaker to another, so as to arrive at a psalm that is uniform and harmonious from a linguistic, literary point of view.