AD8034 input ruins voltage divider

[john23]

Hello,I am trying to use AD8034 as a comparator,P12 is constant DC. as shown in the photos below.
I put simple voltage divider to be in the minus of AD8034.
However when i connect the voltage divider to the minus of the AD8034 i get 1.6 instead of (12/30)*10=4V
Why the opamp ruins my voltage divider?
Thanks.

[Someone]

ABSOLUTE MAXIMUM RATINGS
Differential Input Voltage 1.4 V

I am trying to use [opamp] as a comparator

Don't!