1)
Why did he say "Mevakesh"?
1.
Malbim: He seeks strategies [to kill you].
2)
Why did he say "va'Boker"?
1.
Malbim: It is while you are it is not bed, and do not have your weapons (verse 12).
3)
Why did he say both "ba'Seser" and "v'Nachbesa"?
1.
Malbim: Go to a place that no one knows that you are there, and also there, hide, lest passersby see you.