The Bible is the Word of God and through it God speaks to His people and reveals Himself through His Word.
Yet, the Bible also has other revelations. Besides revealing to us the mind and the heart of God, there are also instances where it reveals the heart and mind of people who commit evil and hence, also the heart and mind of the devil.
If we are surprised by this, then we need look no further than just having to re-read the 1st reading.
It begins with "the godless say to themselves, with their misguided reasoning ... "
And there we get a picture of what goes on in the mind and heart of people who commit evil, and also how the devil stirs up the evil thoughts in those who succumb to be his instruments.
Yes, they reason with evil intent and that is also why the 1st reading said that they are misled and their malice makes them blind.
Furthermore, they do not know the hidden things of God and they have no hope that holiness will be rewarded and that blameless souls will be justified.
The same can be said about those people who were out to kill Jesus. They do not know where He truly came from, and their malice misleads and blinds them.
As for us, by virtue of our baptism, we are called to holiness. We know the ways of God and we also know what God wants of us when we are confronted with people who do evil.
We need to bear witness to the power of God's love and with love we will slowly but surely overcome evil and show people the ways of God.