{Beholdeth} (	he(9372)ei). Vivid historical present and
change from past time. {Opened} (ane(9369)gmenon, perfect passive
participle with double reduplication, state of completion).
{Descending} (katabainon). Present active participle describing
the process. {Sheet} (othon(886e)). Old word for linen cloth and
only here in the N.T. Accusative case in apposition with skeuos
(vessel). {Let down} (Kathiemenon). Present passive participle
of Kathi(886d)i. Old verb, but in the N.T. only here and  Lu 5:19  Ac 9:25 . Linear action here picturing the process, "being let
down." {By four corners} (	essarsin archais). Instrumental case
of arch(885c), beginning. We say "end" or extremity for this use of
the word. The picture is the sheet held up by four cords to which
the sheet is fastened.  Isa 11:12  had said that Israel would be
gathered from the four corners of the earth. Knowling follows
Hobart in taking the four corners of the sheet to be a medical
phrase for bandage (the end of a bandage).