What does Psalms Chapter 107 say, and which statements belong to its speaker?

Paratum cor meum is the incipit; the heading names praise for received benefits and the inscription a canticle's psalm for David. He twice declares ready heart, says he will sing and praise with glory, calls glory, psaltery and harp to rise and will rise early. He will praise among people and sing among nations because mercy exceeds heavens and truth reaches clouds. He asks exaltation above heavens and glory over earth that beloved may be delivered, asking right-hand saving and hearing.

God has spoken in holiness, followed by first-person future rejoicing, dividing Sichem and measuring tabernacles' vale. Galaad and Manasses are mine, Ephraim head's protection and Juda king; Moab is pot of hope, shoe shall stretch over Edom and aliens have become friends. Washbasin, lawgiver and Philistia are not imported from elsewhere.

Questions ask who brings into strong city and leads into Edom and whether God who cast them off will go with armies. They do not document an impregnable mountainous fortress or recent dated campaign. A request seeks help from trouble, declaring man's help vain; through God they shall do mightily and He will bring enemies to nothing. The attributed declaration is not generalized into condemnation of every human alliance or a completed victory.