“MUTH-LABBEN" in the title of this Psalm, perhaps means "the death of the son," or "of his son."
The eight Psalms we have already looked at, form a sort of introduction to all that follow.
Psalms 9 and 10 stand alone, in a way; they lead to Psalms 11 to 15. These two Psalms tell the state or condition or circumstances of the Jewish believers in the coming day; they are then oppressed by the wicked Jews and the heathen.
The humble ones are seen praising with their whole heart, and recounting all the marvelous works of the Lord.
Victory over the enemies of these poor believers, when it comes, is God's doing.
Verses 5 to 8 of Psalm 9 tell the very important principle for faith at all times, that all the schemes and successes of Satan are only for time; he can destroy as God may let him, but God goes on forever.
He will have His way always, at the end, and faith looks on that day, content to wait for Him.
But God is not only certain to be a Judge (verses 7-8) He has another character, blessed he His name; He is a refuge (strictly, a high fortress, or high tower) to the oppressed one, and in times of distress. They that know His name will confide in Him, for He has not forsaken them that seek Him (verses 9-10); He remembers, the cry of the afflicted ones, He does not forget (verse 12).
Higgaion (verse 16), may mean "to be played on the harp," if not "meditate."