Adam Clarke's Bible Commentary Verse 2. O thou Most High. ] µwrm marom. I do not think that this word expresses any attribute of God, or indeed is at all addressed to him.
It signifies, literally, from on high, or froen a high or elevated place: "For the multitudes fight against me from the high or elevated place;" the place of authority-the court and cabinet of Saul.
Most of the Versions begin the next verse with this word: "From the light of the day, though I fear, yet will I trust in thee." From the time that persecution waxes hot against me, though I often am seized with fear, yet I am enabled to maintain my trust in thee. Dr. Kennicott thinks there is a corruption here, and proposes to read: "I look upwards all the day long."
Matthew Henry Commentary
Verses 1-7 - Be merciful unto me, Of God. This petition includes all the good for which we come to throne of grace. If we obtain mercy there, we need n more to make us happy. It implies likewise our best plea, not ou merit, but God's mercy, his free, rich mercy. We may flee to, and trus the mercy of God, when surrounded on all sides by difficulties an dangers. His enemies were too hard for him, if God did not help him. He resolves to make God's promises the matter of his praises, and so we have reason to make them. As we must not trust an arm of flesh when engaged for us, so we must not be afraid of an arm of flesh when stretched out against us. The sin of sinners will never be their security. Who knows the power of God's anger; how high it can reach how forcibly it can strike?
Original Hebrew שׁאפו7602 שׁוררי8324 כל3605 היום3117 כי3588 רבים7227 לחמים3898 לי מרום׃4791