Defining terms Evangelism—telling people the good news of what God has done in Christ and calling on them to repent and put their trust in him. Evangelism involves both giving information and making invitation. Apology—making a defence of this news; answering people's questions and presenting arguments to persuade them
At the Last Supper, Jesus warns his disciples that there will be constant conflict between those who are his and those who are of “the world”. He reminds them through his prayer that “the world has hated them because they are not of the world any more than I am