Christ did not argue--He asserted, and in default of all other proof, if I might venture to say so, He put His own personality into the scales and said, 'There, that will outweigh everything.' So no wonder that 'they were astonished at His doctrine,'--not so much at the substance of it as at the tone of it, 'for He taught them _with authority_.'
But what right had He to teach them with authority? What right has He to present Himself there in front of us and proclaim, 'I say unto you, and there is an end of it'? The heart and essence of Christian faith is doing, in a far sublimer fashion, precisely what this wild Arab did, when he uprooted himself from the conditions in which his life had grown up, and flung himself into an unknown future, on bare trust in a bare word. Jesus Christ asks us to do the same by Him. Whether His word comes to us revealing, or commanding, or promising, it is absolute, and, for His true followers, ends all controversy, all hesitation, all reluctance. When He commands it is ours to obey and live. And when He promises it is for us to twine all the tendrils of our expectations round that faithful word, and by faith to make 'the anchor of the soul, sure and steadfast.' The venture of faith takes a _word_ for the most solid thing in the universe, and the Incarnate Word of God for the basis of all our hope, the authority for all our conduct, 'the Master-light of all our seeing.'
II. Hobab suggests to us, secondly--
The sort of life that follows the venture of faith. The hindrances to his joining Moses were plainly put by himself. He said in effect, 'I will not come; I will depart to mine own land and to my kindred. Why should I attach myself to a horde of strangers, and go wandering about the desert for the rest of my life, looking out for encampments for them, when I can return to where I have been all my days; and be surrounded by the familiar atmosphere of friends and relatives?' But he bethought himself that there was a nobler life to live than that, and because he was stirred by the impulse of reliance on Moses and his promise, and perhaps by some germ of reliance on Moses' God, he finally said, 'The die is cast. I choose my side. I will break with the past. I turn my back on kindred and home. Here I draw a broad line across the page, and begin over again in an altogether new kind of life. I identify myself with these wanderers; sharing their fortunes, hoping to share their prosperity, and taking their God for my God.' He had perhaps not been a nomad before, for there still are permanent settlements as well as nomad encampments in Arabia, as there were in those days, and he and his relatives, from the few facts that we know of them, seem to have had a fixed home, with a very narrow zone of wandering round it. So Hobab, an old man probably, if he was anything like the age of his connection by marriage, Moses, who was eighty at this time, makes up his mind to begin a new career.
Now that is what we have to do. If we have faith in Christ and His promise, we shall not say, 'I am going back to my kindred and to my home.' We shall be prepared to accept the conditions of a wanderer's life. We shall recognise and feel, far more than we ever have done, that we are indeed 'pilgrims and sojourners' here. Dear Christian friends, we have no business to call ourselves Christ's men, unless the very characteristic of our lives is that we are drawn ever forward by the prospect of future good, and unless that future is a great deal more solid and more operative upon us, and tells more on our lives, than this intrusive, solid-seeming present that thrusts itself between us and our true home. That is a sure saying. The Christian obligation to live a life of detachment, even while diligent in duty, is not to be brushed aside as pulpit rhetoric and exaggeration, but it is the plainest teaching of the New Testament. I wish it was a little more exemplified in the daily life of the people who call themselves Christians.