{He kneeled down} (	heis ta gonata autou). Second aorist
active participle of 	ith(886d)i, to place. The very idiom used in
 7:60  of Stephen. Not in ancient writers and only six times in
the N.T. ( Mr 15:19  Lu 22:41  Ac 7:60  9:40  20:36  21:5 ).
Certainly kneeling in prayer is a fitting attitude (cf. Jesus,
 Lu 22:41 ), though not the only proper one ( Mt 6:5 ). Paul
apparently prayed aloud (pros(8875)xato).