The reason why we exalt ourselves in front of people  …

The reason why we exalt ourselves in front of people is

Because we believe that we are righteous

(Lk. 18:9, 14).

The basis for this belief is our own works (vv. 11-12).

As a result, we view others with contempt (v. 9)

And we put distance with them whom we consider as ‘sinners’ (v. 11).

We differentiate from them and boast ourselves that ‘I am better than him/her (v. 11).

If we do so, then we cannot be justified by God (v. 14).