Charles H. Spurgeon on Psalms 66:7

His eyes behold the nations. The radical meaning of the word hku is augazein, to shine, and metonymically to examine with a bright eye; to inspect with a piercing glance, and thence to behold, for either good or evil, as Pr 15:3: "The eyes of the Lord are in every place, beholding the evil and the good." Here it is taken in an adverse sense, and means, to watch from a watch tower, to threaten from a lofty place. Ps 37:32: "The wicked watcheth the righteous; "and Job 15:22: He is waited for "from the watch tower for the sword; "that is to say, the sword is drawn above the head of the wicked, as if it threatened him from the watch tower of God. But, at the same time, there is also a reference to God's looking from the pillar of fire, and of cloud, upon the host of Pharaoh in the Red Sea. Ex 14:24. Hermann Venema.