We are called to be "in the World", but not "of the world"

Followers of Jesus are consecrated (set apart) for His service. Christ's role is to make us holy (sanctification) as He is holy. His business is in the world and so should ours be. Jesus' prayer is that we be involved in evangelization of the Gospel of Jesus Christ, but protected from the Evil One. Spiritual power can not be saved up for later, it is a now event. Opportunities given to you by the Master are meant to be accepted cheerfully because they may not be offered to the unfaithful later. It is like manna from heaven, it is only good for that Day.