Charles H. Spurgeon on Psalms 119:118

Thou hast trodden down. The Septuagint, ebouoenwsav, ad nihil deduxisti;thou hast brought to nothing; Aquila, confixisti, thou hast stricken through: Symmachus, aphlebav, reprobasti, thou hast disproved; the Vulgate sprevisti, thou hast contemned; Apollinarius, aferibav, parvi pependisti, thou hast little esteemed: all to the same purpose. The phrase of treading tinder foot, used by us, implies, 1. A full punishment; 2. A disgraceful one. 1. A full punishment. God will pull them down from their altitudes, even to the dust, though never so high and proudly exalting themselves against God. A full conquest of enemies is thus often expressed in Scripture. The Assyrian is said "to take the prey, and to tread them down like the mire of the streets" (Isaiah 5:6).

2. It implies a disgraceful punishment: "Until I make thine enemies thy footstool" (Psalms 105:1); an expression used to show the ignominy and contempt God will put upon them. Thus Sapores, the king of Persia, trampled upon Valentinian the emperor, and Tamerlane made Bajazet his footstool. The meaning is, God will not only bring them under, but reduce them to an abject mid contemptible condition. So Chrysostom on the text expounds this phrase, that God will make them eponeiooistouv kai katalelastouv, ignominious and contemptible. They shall not go off honourably, but with scorn and confusion of face, miserably broken. Thomas Manton.