God expects His people to avoid unholy practices (i.e., divination, observing of times, witchcraft, wizardry, necromancing) that ensnare the world.
The salutations given by one saint to another are to be given through prayer having both the word of God and the will of God in mind.
Death is the departure of the soul and spirit from the body, but where does each part of man end up after a man dies? The Bible answers this question and more.
God calls people into different works. In the midst of this diversity, a common thread unites all the work—men ought to do all they do to the glory of God.
How would making your motive match the Lord's motive change how you approach the Christian life (from witnessing to praying to Bible reading and so on)?