light of the world = or ha'olam (×ור העול×)
in the light = ba'or (באור)
"Or" (אור).
ילדיו - Yulduv
"my children" = hayeladim sheli (הילדים שלי)
or ha'olam (אור העולם)
Or yafeh (אור יפה)
to a man: atah ha-or. to a woman: at ha-or.
They were the children of the Hebrew people. Today they are called "Jewish children"
There is no such concept as "son-ship" in Hebrew. You would just say children: yeladim (ילדים)
You say 'Yalda' in Hebrew
my dearest children = hayeladím hayekarím shelí (הילדים היקרים שלי)
Has in Hebrew is: YESH