The Scofield Bible Commentary: Psalms: Psalms Chapter 9
The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917]
Muth-labben
"death of the son," is not a musical instrument but the title of the Psalm. Possibly connected with (Sa2 12:20).
trust
(See Scofield) - (Psa 2:12).