Commentaries:
Robertson's Word Pictures (NT)
Fell down (prosepesen). Second aorist active of prospiptw, to fall forward, towards, prostrate before one as here. Common verb. Mark 5:6 has prosekunhsen (worshipped).
The Most High God (tou qeou tou uyistou). Uncertain whether tou qeou genuine or not. But "the Most High" clearly means God as already seen (Luke 1:32, Luke 1:35-36; Luke 6:35). The phrase is common among heathen (Numbers 24:16; Micah 6:6; Isaiah 14:14). The demoniac may have been a Gentile, but it is the demon here speaking. See on Mark 2:7; Matthew 8:29 for the Greek idiom (ti emoi kai soi). "What have I to do with thee?" See there also for "Torment me not."
Other Robertson's Word Pictures (NT) entries containing Luke 8:28:
Mark 5:7
John 2:4
Acts 16:17
Hebrews 7:1
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