Insincerity
<<deceit>>
This is hypocrisy or artificiality – saying something yet not meaning it. In the Bible, God says it is honouring Him with our lips, yet with our hearts far from Him (Isa 29:13; Jer 12:2). Jesus said, “If you love me, keep my commands” yet how often do we say, ‘Lord, I love you’ then fail to do as He clearly instructs (Jn 14:15).
See also: artificial, flattery, hypocrite.