We note, too, the partial withdrawal of the veil which hides the spirit world from us, in the distinct declaration of the agency of a personal tempter, whose power is limited, though his malice is boundless, and who had to obtain God's permission ere he could tempt. His sieve is made to let the wheat through, and to retain the chaff. It will be hard to empty this saying of its force. Christ taught the existence and operation of Satan; but He taught, too, that He Himself was Satan's victorious antagonist and our prevailing intercessor. He is so still. He does not seek to avert conflict from us, but prays that our faith fail not, and Himself, too, fulfils the prayer by strengthening us.
Faith, then, conquers, and withstands Satan's sifting. If it holds out, we shall not fall, though all the winds howl round us. We are not passive between the two antagonists, but have to take our share in the struggle. Partial failures may be followed by recovery, and even tend to increase our power to strengthen other tempted ones, by the experience gained of our own weakness, which deepens humility and forbearance with others' faults, and by the experience of Christ's strength, which makes us able to direct them to the source of all safety.
Peter's passionate avowal of readiness to bear anything, if only he was with Christ, is the genuine utterance of a warm impulsive heart, which took too little heed of Christ's solemn warning, and fancied that the tide of present feeling would always run as strong as now. Emotion fluctuates. Steadfast devotion is chary of mortgaging the future by promises. He who knows himself is slow to say, 'I will,' for he knows that 'Oh that I may!' is fitter for his weakness. Very likely, if Peter had been offered fetters or the scaffold then and there, he would have accepted them bravely; but it was a different thing in the raw, cold morning, after an agitating night, and the Master away at the far end of the great hall. A flippant maid's tongue was enough to finish him then.
It is sometimes easier to bear a great load for Christ than a small one. Some of us could be martyrs at the stake more easily than confessors among sneering neighbours. Jesus had spared the Apostle in the former warning of his fall, but He spoke plainly at last, since the former had been ineffectual; and He addressed him by his new name of Peter, as if to heighten the sin of denial by recalling the privileges bestowed.
IV. The last part of the passage deals with the new conditions consequent on Christ's departure. The Twelve had been exempt from the care of providing for themselves while He was with them, but now they are to be launched into the world alone, like fledglings from the nest. Not that His presence is not with them or with us, but that His absence throws the task of providing for wants and guarding against dangers on themselves, as had not been the case during the blessed years of companionship. Hence the injunctions in verse 36 lay down the permanent law for the Church, while verse 37 assigns as its reason the speedy fulfilment of the prophecies of Messiah's sufferings.
Substantially the meaning of the whole is: 'I am on the point of leaving you, and, when I am gone, you must use common-sense means for provision and protection. I provided for you while I was here, without your co-operation. Remember how I did so, and trust Me to provide in future, through your co-operation.'
The life of faith does not exclude ordinary prudence and the use of appropriate means. It is more in accord with Christ's mind to have a purse to keep money in, and a wallet for food-stores, than to go out, as some good people do, saying, 'The Lord will provide.' Yes, He will; but it will be by blessing your common-sense and effort. As to the difficulty felt in the injunction to buy a sword, our Lord would be contradicting His whole teaching if He was here commanding the use of arms for the defence of His servants or the promotion of His kingdom. That He did not mean literal swords is plain from His answer to the Apostles, who produced the formidable armament of two.