Verse 1
"To the chief musician, upon Jeduthun, a psalm of David."
"Jeduthun" was one of the chief singers of the Temple.
The heading of the psalm, repeated at the start of each part.
Verse 8
"On God rest my salvation and my honor; the rock of my strength, my refuge, is in God."
"The rock of my strength" is the rock that gives me power; "my refuge" is my shelter.
David gathers in one verse all that he has — salvation, honor, strength, shelter — all from one source: God.
Verse 9
"Trust in Him at all times, O people; pour out your hearts before Him. God is a refuge for us. Selah."
"O people" is a call to the nation; "Selah" marks a pause.
David turns to the crowd: what worked for my soul will work for you.
To pour out the heart means to hide nothing — fear, pain, hope.
Verse 10
"Men are but a breath, the sons of man a lie; on the scales they rise, all of them together lighter than breath."
"A breath" is passing air that weighs nothing.
Put all of humanity on the scales — they rise, lighter than a breath.
Not because people do not matter, but because no one supports like God.
Verse 11
"Do not trust in oppression, and do not put vain hope in robbery; if wealth flourishes, do not set your heart on it."
"If wealth flourishes" means when riches grow.
Power taken by force — oppression and robbery — is a breath.
And even honest wealth: when it grows, do not give it your heart.
Verse 12
"Once God has spoken; twice have I heard this: that strength belongs to God."
From one word of God rise two truths.
The first: real power belongs to Him alone.
Verse 13
"And Yours, O Lord, is kindness, for You repay each man according to his deeds."
And the second truth: His is the kindness.
Power without kindness would be terrifying; kindness without power would be helpless. In God they are one — and that is the good news.
This part turns trust from a private secret into the song of a whole community. David, who learned to quiet his soul, now calls the people: trust in Him at all times, pour out your hearts. Not in men, not in wealth — but in the One whose strength and kindness are one. So a chapter that began in quiet stillness closes with a great anthem sung by all.