1)
What is the meaning of "Al Taster Panecha"?
1.
Radak: This is like he said "Pene Elai" (verse 17). One who does not desire a person, he hides his face from him.
2.
Malbim: Not only should You turn to me - I should see that You stand to save me, and after, "when it is difficult for me, You will answer me quickly", without delay.