{And now} (kai ta nun). "And as to (accusative of general
reference) the now things (the present situation)." Only in the
Acts in the N.T. ( 5:38  17:30  20:32  27:22 ). {Grant} (dos).
Second aorist active imperative of did(936d)i, urgency of the
aorist, Do it now. {To speak thy word with all boldness} (meta
parr(8873)ias pas(8873) lalein ton logon sou). Literally, "with all
boldness to go on speaking (present active infinitive) thy word."
Peter and John had defied the Sanhedrin in verse  20 , but all
the same and all the more they pray for courage in deed to live
up to their brave words. A wholesome lesson.