Albert Barnes Commentary Psalms 77:3

"I remember God, and am disquieted: I complain, and my spirit is overwhelmed. Selah" — Psalms 77:3 (ASV)

I remembered God – That is, I thought about God; I thought about His character, His government, and His dealings. I thought about the mysteries – the incomprehensible things, the apparently unequal, unjust, and partial actions – of His administration. It is evident from the whole tenor of the psalm that these were the things that occupied his attention. He dwelt on them until his whole soul became sad, until his spirit became so overwhelmed that he could not find words to express his thoughts.

And was troubled – The Septuagint renders this, εὐφράνθην (euphranthēn) – I was rejoiced or delighted. The Vulgate does so as well. Luther renders it, “When I am troubled, then I think on God.” Our translation, however, has probably given the true idea. In that, it has expressed (a) what often occurs in the case of even a good man – that by dwelling on the dark and incomprehensible things of the divine administration, the soul becomes sad and troubled to an extent bordering on murmuring, complaint, and rebellion; and this may also serve to illustrate (b) what often happens in the mind of a sinner – that he delights to dwell on these things in the divine administration for these reasons:

1. As most in accordance with what he desires to think about God, or with the views he wishes to cherish concerning Him; and
2. As justifying himself in his rebellion against God and his refusal to submit to Him – for if God is unjust, partial, and severe, the sinner is right. Such a Being would be unworthy of trust and confidence; He ought to be opposed, and His claims ought to be resisted.

I complained – Or rather, I mused or meditated. The word used here does not necessarily mean to complain. It is sometimes used in that sense, but its proper and common meaning is to meditate (see Psalms 119:15, Psalms 119:23, Psalms 119:27, Psalms 119:48, Psalms 119:78, Psalms 119:148).

And my spirit was overwhelmed – With the result of my own reflections. That is, I was amazed or confounded by the thoughts that came to me.