In the verses of today, a parallel is drawn between the disciples who are sent by Jesus and Jesus himself. The disciples will share the same fate as their master. His response to negative assessment of his mission was equanimity and this must be the response of the disciples’ as well. They must not retaliate, but continue to persevere in the firm hope that they will eventually succeed. They are asked to be fearless in mission. The command “not to be afraid” is repeated twice in these verses. The reason for their fearlessness is that the Father is in control even if all evidence is to the contrary. If they remain faithful they will show themselves to be true disciples.
We often begin things with a bang and then end them with a whimper. This is because sometimes our enthusiasm runs away with us. What is required is perseverance and this is more likely if we start slowly and steadily (as Jesus himself did) and then let things build up gradually than if we start with much fanfare, which soon fizzles out.