In the parable of the labourers in the vineyard, Jesus responds to Peter’s question: “We have left everything and followed you. What then will we have” (19:27). Jesus explains that the life of a Christian is a call to serving Gods vineyard. However our service does not go towards earning those rewards or more. All is grace. Peter’s question, as much as the labourers complaints, suggest how hard it is to grasp that God promises rewards to those who obey without thought of reward.