And you will be blessed, because they cannot repay you, for you will be repaid at the resurrection of the righteous. (Luke 14:14, NRSV)
I have nearly taken for granted the notion that Christians should not be motivated by or interested in rewards. If you do something because God will reward you, the thinking goes, then you are not doing it for the right motives. But if that is the case, why does Jesus spend so much time dangling future rewards in front of the disciples and the crowds?