20-129
And had a statement not gone forth from your Fosterer and a term appointed, the (punishment) would have become inevitable (on them).
Infidels are not punished immediately because the time of their punishment is fixed.
20-130
So be patient on what they say and glorify your Fosterer by praising Him before the rising of the sun and before its setting, and during hours of night (too) glorify (Him), and (also) at the two ends of the day, that you may be pleased.
Approximate timings of Salat are given.
20-132
And enjoin worship (salat) on your people and be constant therein. We do not ask you for provision, We provide for you. And the consequence of guarding (against evil, is good).
Salat is to be enjoined on people. Allah (SWT) provides for us, we do not and cannot provide for Him.
20-133
And they say, “”Why does he not bring to us a sign from his Fosterer?”” Has a clear proof not come to them through that which was there in previous books?
The coming of Prophet Muhammed (PBH) was mentioned in earlier Divine books 7:157. Is this not sufficient as a proof of his prophet- hood.?
20-134
And had We destroyed them with punishment before (sending) him, they would have said, “”Our Fosterer! before we were humbled and disgraced, why did you not send to us a messenger, so that we could have followed Your signs (orders).””
One of the purposes of sending Prophet Muhammed (PBH) was that people should not have any excuse that they did not know what was right and what was wrong.
20-135
Say, “”Everyone is waiting, so you (too) wait, and you will come to know who the companions of the balanced path are, and who is (rightly) guided?”” (R 8 , P 16)
All are waiting for the result of their deeds to be made known on the day of resurrection.