And yet that's exactly what believers think according to new studies:
[P]eople's own beliefs on important social and ethical issues were consistently correlated more strongly with estimates of God's beliefs than with estimates of other people's beliefs...reasoning about God's beliefs activated areas associated with self-referential thinking more so than did reasoning about another person's beliefs. Believers commonly use inferences about God's beliefs as a moral compass, but that compass appears especially dependent on one's own existing beliefs. Link
The studies seem to ignore some very fundamental facts about what the Bible actually says about what God thinks and how people think. You cannot simultaneously believe that you know what God thinks and believe the Bible is true. If you believe the Bible than you know that God isn't even on the same level as we are on. We are not thinking his thoughts. We don't know God because of what is in us, but because of what has been revealed to us by God himself. There are no scriptures that should lead us to think we believe what God believes. The information flows from him, not back and forth.
Debunking Christianity: The Danger of Belief is Thinking You Believe What God Does
6 Seek the LORD while he may be found;
call on him while he is near.
7 Let the wicked forsake their ways
and the unrighteous their thoughts.
Let them turn to the LORD, and he will have mercy on them,
and to our God, for he will freely pardon.
8 “For my thoughts are not your thoughts,
neither are your ways my ways,”
declares the LORD.
9 “As the heavens are higher than the earth,
so are my ways higher than your ways
and my thoughts than your thoughts.
10 As the rain and the snow
come down from heaven,
and do not return to it
without watering the earth
and making it bud and flourish,
so that it yields seed for the sower and bread for the eater,
11 so is my word that goes out from my mouth:
It will not return to me empty,
but will accomplish what I desire
and achieve the purpose for which I sent it. - Isaiah 55:6-11
12 For now we see only a reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known. - 1 Corinthians 13:12
2 Those who think they know something do not yet know as they ought to know. 3 But whoever loves God is known by God. - 1 Corinthians 8:2-3