I see it more like their sinfulness prevents them from seeing God.People today won't recognize God because they suppress the truth by their sinfulness.
I was pointing out that they don't believe the truth found in the books themselves. Plenty of Christians believe the prophecies, but ignore the book of Moses completely. Jesus says that if you don't listen to what Moses says, you aren't going to hear anything he says either. In the book of Acts, the gentile converts were going into the synagogues on the Sabbath to hear what the book of Moses has to say. Acts15:21-
Yes, when preaching the Word of God we need to bring up the prophecies from God. It makes the case that the God of the Jewish people is the true God, and then highlights that salvation is from the Jews and not only for the Jewish people but all peoples.