2Sa 22:1-51. David's Psalm of Thanksgiving for God's Powerful Deliverance and Manifold Blessings.
The song contained in this chapter is the same as the eighteenth Psalm, where the full commentary will be given [see on Ps 18:1, &c.]. It may be sufficient simply to remark that Jewish writers have noticed a great number of very minute variations in the language of the song as recorded here, from that embodied in the Book of Psalms -- which may be accounted for by the fact that this, the first copy of the poem, was carefully revised and altered by David afterwards, when it was set to the music of the tabernacle. This inspired ode was manifestly the effusion of a mind glowing with the highest fervor of piety and gratitude, and it is full of the noblest imagery that is to be found within the range even of sacred poetry. It is David's grand tribute of thanksgiving for deliverance from his numerous and powerful enemies, and establishing him in the power and glory of the kingdom.