Jesus encloses His prayer between the two parts of that repeated statement of the disciples' isolation. It is like some lovely, peaceful plain circled by grim mountains. The isolation is a necessary consequence of the disciples' previous union with Him. It involves much that is painful to the unrenewed part of their natures, but their Lord's prayer is more than enough for their security and peace. 'I pray not that Thou shouldest take them out of the world.' They are in it by God's appointment for great purposes, affecting their own characters and affecting the world, with which Christ will not interfere. It is their training ground, their school. The sense of belonging to another order is to be intensified by their experiences in it, and these are to make more vivid the hopes that yearn towards the true home, and to develop the 'wrestling thews that throw the world.' The discipline of life is too precious to be tampered with even by a Saviour's prayer, and He loves His people too wisely to seek to shelter them from its roughness, and to procure for them exemption which would impoverish their characters. So let us learn the lesson and shape our desires after the pattern of our Lord's prayer for us, nor blindly seek for that ease which He would not ask for us. False asceticism that shrinks from contact with an alien world, weak running from trials and temptations, selfish desires for exemption from sorrows, are all rebuked by this prayer. Christ's relation to the world is our pattern, and we are not to seek for pillows in an order of things where He 'had not where to lay His head.' But He does ask for His people that they may be kept 'from evil,' or from 'the evil One.' That prayer is, as we have said, a promise and a prophecy. But the fulfilment of it in each individual disciple hinges on the disciple's keeping himself in touch with Jesus, whereby the 'much virtue' of His prayer will encompass him and keep him safe. We do not discuss the alternative renderings, according to one of which 'the evil' is impersonal, and according to the other of which it is concentrated in the personal 'prince of this world.' In either case, it is 'the evil' against which the disciples are to be guarded, whether it has a personal source or not.