God expects His people to avoid unholy practices (i.e., divination, observing of times, witchcraft, wizardry, necromancing) that ensnare the world.
Seeking counsel or instruction from spirits or from the deceased is a wicked practice and demands God's righteous judgment.
John wondered at the thought that there would be a time in the future when a group identifying as Christian would put others to death for having faith in Christ.
A martyr is one who is killed for his faith. Only two individuals are specifically named as martyrs in scripture: Stephen and Antipas.
