The change of tone so marked here, from the warlike to the plaintive, leads to the supposition that Psalms 27:7-12 are interpolated from another song of quite another kind in contents, art, and period.
I cry with my voice — i.e., aloud.
Related Commentaries of Psalms 27:7
Psalms 27:7
7 Hear, O LORD, when I cry with my voice: have mercy also upon me, and answer me.