{As it were a glassy sea} (h(9373) thalassan hualin(886e)).
Accusative case after eidon and h(9373) here, not in  4:6 , which
see for the symbol. {Mingled with fire} (memigmen(886e) puri).
Perfect passive participle of mignumi, to mix, and the
associative instrumental case puri. This item not in  4:6  (a
vision of peace), but here it adds to the splendour of the
vision. This parenthesis ( 2-4 ) gives a picture of the martyrs
in their state of bliss. {Them that come off victorious} (	ous
nik(936e)tas). Present active articular participle of 
ika(935c),
accusative after eidon, "those that come off victorious"
( 14:4 ). {From the beast and from his image} (ek tou th(8872)iou
kai ek t(8873) eikonos autou). This use of ek after 
ika(935c) is
unusual, also with ek tou arithmou. For these items see
 13:1,14,17  14:9,11  19:20  20:4 . {By the glassy sea} (epi t(886e)
thalassan t(886e) hualin(886e)). Or "upon" more likely ( 4:6 ) with the
accusative as in  Mt 14:25ff . {Harps of God} (kitharas tou
theou). Objective genitive, for the worship of God ( 5:8  14:2  1Ch 16:42 ).