“Slay the idolators [non-Muslims] wherever ye find them, and take them captive, and besiege them, and prepare for them each ambush. Fight against such of those who have been given the Scripture as believe not in Allah nor the last Day…. Go forth, light-armed and heavy-armed, and strive with your wealth and your lives in the way of Allah!"
-From the Qur'an (Sura 9:5,29,41)
"If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, which is as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;
Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him;
But thou shalt surely kill him; thine hand shall be first upon him to put him to death, and afterwards the hand of all the people.
And thou shalt stone him with stones, that he die; because he hath sought to thrust thee away from the LORD thy God, which brought thee out of the land of Egypt, from the house of bondage.
And all Israel shall hear, and fear, and shall do no more any such wickedness as this is among you."
-From the Holy Bible (Deuteronomy 13:6, 8-11)