Apocalypse Explained #284
284. And they were full of eyes within. That this signifies the Divine providence and guardianship, is evident from the signification of eyes, when said of the Lord, as being His Divine providence (concerning which see above, n. 68 152). The reason why guardianship is also signified is that cherubim have also that signification (n. 277).
Malachi 4:2
2
But to you who fear my name shall the sun of righteousness arise with healing in its wings. You will go out, and leap like calves of the stall.