1)
Why did he build the towers?
1.
'Rashi': Yo'ash Melech Yisrael breached the wall (23:25) in the days of Uziyah's father Amatzyah, so he needed to strengthen it.
2.
Malbim: It was to fortify his land against enemies.
2)
What is "Sha'ar ha'Pinah"?
1.
Refer to Melachim II, 14:13:3:1.
3)
What is "ha'Miktzo'a"?
1.
Radak: It is the corner, like "Al Arba'as Miktzo'ei he'Chatzer" (Yechezkel 46:21).
