1)
Why will "Za'akah" be heard?
1.
Radak: It is heard when evil comes suddenly.
2.
Malbim: When they are greatly afflicted, they will justify the verdict; it is because they wanted to trap (covertly kill) me. It will become known that the slander they said about me was false.
2)
Why does it say "Charu Shuchah Lelachdeni"?
1.
Rashi: They suspected that I sinned with a married woman - "Ki Shuchah Amukah Zonah" (Mishlei 23:27).
2.
Radak: Refer to 18:20:2:1.
3.
Malbim: They wanted to kill me via slander.
