I will remember God, and will be troubled. The Psalmist here employs a variety of expressions to set forth the vehemence of his grief, and, at the same time, the greatness of his affliction. He complains that what constituted the only remedy for allaying his sorrow became to him a source of disquietude. It may, indeed, seem strange that the minds of true believers should be troubled by remembering God. But the meaning of the inspired writer simply is, that although he thought upon God his distress of mind was not removed. It no doubt often happens that the remembrance of God in the time of adversity aggravates the anguish and trouble of the godly, as, for example, when they entertain the thought that he is angry with them. The prophet, however, does not mean that his heart was thrown into new distress and disquietude whenever God was brought to his recollection: he only laments that no consolation proceeded from God to afford him relief; and this is a trial which it is very hard to bear. It is not surprising to see the wicked racked with dreadful mental agony; for, since their great object and endeavor is to depart from God, they must suffer the punishment which they deserve, on account of their rebellion against him. But when the remembrance of God, from which we seek to draw consolation for mitigating our calamities, does not afford repose or tranquillity to our minds, we are ready to think that he is sporting with us. We are nevertheless taught from this passage, that however much we may experience of fretting, sorrow, and disquietude, we must persevere in calling upon God even in the midst of all these impediments.

I remembered God - That is, I thought on God; I thought on his character, his government, and his dealings; I thought on the mysteries - the incomprehensible things - the apparently unequal, unjust, and partial doings - of his administration. It is evident from the whole tenor of the psalm that these were the things which 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 in which to utter his thoughts.
And was troubled - The Septuagint renders this, εὐφράνθην euphranthēn - I was rejoiced or delighted. So the Vulgate. Luther renders it, "When I am troubled, then I think on God." Our translation, however, has probably given the true idea; and in that 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 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:
(1) as most in accordance with what he desires to think about God, or with the views which he wishes to cherish of 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 signification is to meditate. See Psalm 119:15, Psalm 119:23, Psalm 119:27, Psalm 119:48, Psalm 119:78,Psalm 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 in upon me.

My spirit was overwhelmed - As the verb is in the hithpaeI conjugation, the word must mean my spirit was overpowered in itself. It purposed to involve itself in this calamity. I felt exquisitely for my poor suffering countrymen.
"The generous mind is not confined at home;
It spreads itself abroad through all the public,
And feels for every member of the land."

I remembered God, and was (b) troubled: I complained, and my spirit was overwhelmed. Selah.
(b) He shows that we must patiently abide though God does not deliver us from our troubles at the first cry.

I remembered God, and was troubled,.... Either the mercy, grace, and goodness of God, as Jarchi; how ungrateful he had been to him, how sadly he had requited him, how unthankful and unholy he was, notwithstanding so much kindness; and when he called this to mind it troubled him; or when he remembered the grace and goodness of God to him in time past, and how it was with him now, that it was not with him as then; this gave him uneasiness, and set him a praying and crying, that it might be with him as heretofore, Job 29:2, or rather he remembered the greatness and majesty of God, his power and his justice, his purity and holiness, and himself as a worm, a poor weak creature, sinful dust and ashes, not able to stand before him; he considered him not as his father and friend, but as an angry Judge, incensed against him, and demanding satisfaction of him:
I complained; of sin and sorrow, of affliction and distress: or "I prayed", or "meditated" (l); he thought on his case, and prayed over it, and poured out his complaint unto God, yet found no relief:
and my spirit was overwhelmed; covered with grief and sorrow, pressed down with affliction, ready to sink and faint under it:
Selah: See Gill on Psalm 3:2.
(l) "meditabor", Montanus, Junius & Tremellius, Gejerus; "meditabor", Musculus, Piscator, Cocceius.

His sad state contrasted with former joys.
was troubled--literally, "violently agitated," or disquieted (Psalm 39:6; Psalm 41:5).
my spirit was overwhelmed--or, "fainted" (Psalm 107:5; Jonah 2:7).

Troubled - Yea, the thoughts of God were now a matter of trouble, because he was angry with me. Overwhelmed - So far was I from finding relief.