Or HaChaim on Exodus 2:25/אור החיים על שמות ב׳:כ״ה

1 וירא אלוקים…וידע אלוקים. G'd saw,….and G'd knew. After the children of Israel had raised their voices in groanings and prayers and G'd had heard those, He remembered His covenant with the patriarchs. This was the reason He turned His attention to the people. Whenever G'd is described as viewing someone's pain this is sufficient to result in the removal of such pain from the person so afflicted, for His mercy extends to all His creatures. It follows that when G'd is angry He must hide His face from the people otherwise He would have to act in accordance with the principle we have just described. This is why G'd said in Deut. 31,18: "As far as I am concerned, I will surely have to hide My face, etc." The word וידע may refer also to information that had thus far been hidden even from the Israelites concerning evil the Egyptians had perpetrated against that people.