John Gills Exposition of the Bible Commentary - Psalms 9:1
I will praise thee , O Lord, with my whole, heart ,.... This is what is called in the New Testament making melody in the heart, or singing with grace in the heart, Ephesians 5:19 ; and yet does not signify mere mental singing, but vocal singing, the heart joining therein; for the word here used for praise signifies to confess, to speak out, to declare openly the praises of God in the public congregation, as David elsewhere determines to do, Psalm 111:1 ; the heart ought to, be engaged... read more
Matthew Henry's Complete Commentary - Psalms 9:1-10
The title of this psalm gives a very uncertain sound concerning the occasion of penning it. It is upon Muth-labben, which some make to refer to the death of Goliath, others of Nabal, others of Absalom; but I incline to think it signifies only some tone, or some musical instrument, to which this psalm was intended to be sung; and that the enemies David is here triumphing in the defeat of are the Philistines, and the other neighbouring nations that opposed his settlement in the throne, whom he... read more