A traditional Christian who believes that Satan exists, also believes that Satan is able to quote the Bible well. There are passages in the new Testament about how Satan used the Bible to tempt Jesus.
Assuming that you are a traditional Christian, then you should be aware that biblical knowledge is not the key to the Christian salvation. However many fundamental Christians are in the habit of carrying their Bibles with them and quoting from it to justify their point of view.
However, I believe anyone who has faith in God, knows that God dwell within us. With that faith, one needs no proof from any external document including scriptures on what he has to say or do. Jesus and other spiritual masters never carried scriptures with them.
With faith in the God who resides within, you will know how to make the right choice. You will joyfully do the right thing such as loving those around you as you love yourself. Do always what love wants you to do. God is Love. God is also Joy. Many non-Christians are able to practice this with joy.
So now go into your God space within you. See all what God has shown you through all your senses. Seek the truth. God is Truth. He will guide you on the issues in front of you. These could involve stem cells, gay marriage, evolution, or even to buy that car.
God is Joy, Truth and Love. This trinity is the mark of God.
God always prefers the grandest vision for you.
Then his message will always been the grandest choice with Joy, Love and Truth. Anything less than that is not his suggestion. However, it is you choice to accept his guidance or not. Many prefer to listen to others rather than God.
He will never force you with his message.
You are free to choose what others say even if it is not in sink with God's direction for you.