Acts 1:7-8, and it is the answer Neville gives to the one question he says everyone in the room wants to ask. Don't try to hasten it; don't ask when will it happen to me, for no one knows the time or the season. Do not ask the time, ask the season, for it's not yours to know - the Father has fixed it by his own authority. Just wait, wait for the promise of the Father; but power will come to you when the Holy Spirit has come upon you, and then you will be my witnesses in Jerusalem, in all Judea, in Samaria, to the end of the earth. The instruction is patience without a schedule, and what makes it bearable is that the promise is named: at 1770 and 1913 the promise of the Father is the promise of himself, God gives man himself, as though there were no other. At 1240 the same verse is read from the speaker's side - I send the promise of the Father upon you, but wait in the city until you are clothed with power from on high - and since all the promises of God have their yes in him, what he sends is himself. At 1828 the waiting is joined to grace: wait, because you can't earn it; when it comes it's a gift. At 1821 the waiting has an object that is not the waiter - he has promised to redeem you, and redeeming you is redeeming himself. About eight lectures. Keep it beside M560, which measures the interval of an imagined state; this one refuses to measure the interval of the promise at all.