Hypocritical prayers and tears?

I think a person who hides his feeling of hate with flattering words

In spite of the fact that that feeling toward another person should be expressed

is a very scary person

Furthermore, the person who can hide his hate feeling with tears is very dangerous person.

We must not be deceived by his flattering words and tears.

In particular, we must stop deceiving ourselves before God with our own hypocritical prayers and tears.

(Cf. Prov. 26:25)