JMNT(i)
47 "and then, upon the [authority and basis of] His Name, a change of mind and thinking – [proceeding, or, leading] into a flowing away of failures (a sending away of mistakes; a forgiveness of sins; a divorcing of the situations of missing the target; an abandonment of guilt; a release from error) – is to be proclaimed by heralds unto all the ethnic multitudes and nations (or: the Gentiles; the non-Israelites), beginning (or: with folks starting) from Jerusalem.
48 "You folks are witnesses of these things (or: are people who can give evidence for these people).
49 "And so, look and take note: I Myself am now progressively sending forth the Promise from out of the midst of, and from, My Father (or: am out from within repeatedly sending forth My Father's promise, as an Emissary; [with other MSS: From where I now am, I now continuously send off the Promise, which is My Father]) upon you people. So you, yourselves, sit down (be seated) within the City – until where (or: which [situation] or: what [time]) you can (or: may) clothe yourselves with (or: enter within the midst of) power and ability from out of the midst of exaltation (or: height; elevation; perhaps: = on high)."