Our Sages explain that
the Hebrew word for cherub: כְּרוּב
is from Aramaic and means “as a baby.”
The cherubs had baby faces
which represents innocence
and the loving touch of their wings
reflects the epitome
of pure, innocent love and harmony
between G-d and the Jewish people.
When this love was disrupted
the “faces” of the cherubs
and become fearful and angry.
The “changing faces”
is the theme of my Dialogue series
Source: Parshat Terumah – תרומה