Johan

It is good you are going to see your pastor about the issue.
However, I am assuming that your pastor is Reformed? If that is the case, although this does not justify what he said; he could be saying that man's sin and depravity affects their mind set; which of course it does. This of course is only a small portion of what sin and depravity affect.

What I have found quite odd even among Reformed pastors today, is that they often change the words in order to help people understand things better.
In my mind however, I think they succeed only in confusing the issue.
I think a better way to do what they are trying to do (if they find a need to do it), is to use the words that have always been used, then explain what it means.

Tom