Adam Clarke on Psalms 65:8

Are afraid at thy tokens - Thunder and lightning, storms and tempests, eclipses and meteors, tornadoes and earthquakes, are proofs to all who dwell even in the remotest parts of the earth, that there is a Supreme Being who is wonderful and terrible in his acts. By these things an eternal power and Godhead become manifest even to the most barbarous. From this verse to the end of the Psalm there is a series of the finest poetic imagery in the world.

The outgoings of the morning, etc. - The rising and setting sun, the morning and evening twilight, the invariable succession of day and night, are all ordained by thee, and contribute to the happiness and continuance of man and beast. Or, All that fear thee praise thee in the morning, when they go to their work, and in the evening, when they return home, for thy great goodness manifested in the continuance of their strength, and the success of their labor.