'Reward' in the Bible

It is to be your food, for you and your families in every place: it is your reward for your work in the Tent of meeting.

But if you do not do this, then you are sinners against the Lord; and you may be certain that your sin will have its reward.

Further, no price may be given for the life of one who has taken life and whose right reward is death: he is certainly to be put to death.