With prophetic perfect tenses, Isaiah predicted the overthrow of Ephraim and its leaders. It was as good as accomplished. With hand ( Isaiah 28:2) and foot ( Isaiah 28:3), God would throw down and trample His people. [source][source][source]
Context Summary
Isaiah 28:1-13 - The Decay Of An Intemperate People
A new series of prophecies begins here and extends to Isaiah 32:20. Samaria is described as a faded crown or garland on the nation's head because it was disgraced by the national drunkenness. See Amos 4:1. So corrupted was she by strong drink and its attendant evils that the Assyrian invader would plunder her as a man gathers ripe figs. But to Judah, that is, the remnant, the Lord would be a crown or garland, not of pride but of glory. His beauty would not be as a fading flower, but a lasting diadem. What wine is to the sensuous man, that God is to the spiritual. See Ephesians 5:18. You that have to form right judgments, and you that have to turn the battle from the gate, will find all your need in Him. In Isaiah 28:7-8 we have a terrible picture of widespread effects of strong drink; and in Isaiah 28:9-10 the prophet recites the ribald remarks addressed to himself by the roisterers of those evil days. He replies that God would Himself answer them by the stern accents of the Assyrian tongue, which would sound like stammering, Isaiah 28:11; and this would befall them because they would not need the wooing accents of His love, Isaiah 28:12. [source]
Chapter Summary: Isaiah 28
1The prophet threatens Ephraim for their pride and drunkenness 5The residue shall be advanced in the kingdom of Christ 7He rebukes their error 9Their unwillingness to learn 14And their security 16Christ the sure foundation is promised 17Their security shall be tried 23They are incited to the consideration of God's providence
What do the individual words in Isaiah 28:3 mean?
UnderfootWill be trampledthe crownof pridethe drunkardsof Ephraim