JMNT(i)
7 "Be habitually requesting (or: Keep on asking), and it (or: He) will proceed being given to (or: for; in) you people. Be habitually seeking (or: Keep on searching and trying to find), and you folks will repeatedly find. Be repeatedly (or: Keep on) knocking, and it (or: He) will habitually be opened up to (or: for; in) you.
8 "You see, everyone habitually requesting is repeatedly receiving. He who keeps on seeking and searching is constantly finding. And to (in; for) the person repeatedly knocking it will be opened up.
9 "Well then, a certain person [is] a man from among you folks from whom his son will request a loaf of bread – he will not proceed to be handing a stone to him, will he?
10 "Or, perhaps he will ask for a fish – he will not proceed to be handing a snake (serpent) to him, will he?
11 "Since, then (or: If, therefore), you folks – being miserable, bad and useless as you are – have seen [in life] and now know to be habitually giving good gifts (or: the results of virtue and excellence) to your own children, how much more will your Father – the One within and in union with the heavens and within the midst of the atmospheres – continue giving good, excellent things as well as virtues to those continuing in requesting from Him (or: asking Him)?
12 "Therefore, all things – as many as you folks may continue wanting or should by habit be purposing – that people (mankind; men) should be habitually doing to or for you, thus also (or: likewise), you folks, yourselves, be continuously doing to and for them (or: = Treat others in the way that you yourselves would like to be treated). You see, THIS is (or: exists being; = is the meaning of) the Law and the Prophets (= this sums up the message of the Scriptures)!