In discussing the question regarding "things offered unto idols," Paul is led to treat at large of Christian liberty, a subject to which he was always drawn. And partly to encourage the Christians of Corinth to consider their weak and prejudiced brethren, partly for other reasons, he reminds them how he himself abridged his liberty and departed from his just claims in order that the Gospel he preached might find readier acceptance. Besides, not only for the sake of the Gospel and of other men, but for his own sake also, he must practise self-denial. It would profit him nothing to have been an apostle unless he practised what he preached. He had felt that in considering the spiritual condition of other men and trying to advance it he was apt to forget his own; and he saw that all men were more or less liable to the same temptation, and were apt to rest in the fact that they were Christians and to shrink from the arduous life which gives that name its meaning. By means of two illustrations Paul fixes this idea in their minds, first pointing them to their own games, in which they saw that not all who entered for the race obtained the prize, and then pointing them to the history of Israel, in which they might plainly read that not all who began the journey to the promised land found entrance into it.
The Israelites of the Exodus are here introduced as exemplifying a common experience. They accepted the position of God's people, but failed in its duties. They perceived the advantages of being God's subjects, but shrank from much which this implied. They were willing to be delivered from bondage, but found themselves overweighted by the responsibilities and risks of a free life. They were in contact with the highest advantages men need possess, and yet failed to use them.
The amount of conviction which prompts us to form a connection with Christ may be insufficient to stimulate us to do and endure all that results from that connection. The children of Israel were all baptized unto Moses, but they did not implement their baptism by a persistent and faithful adherence to him. They were baptized unto Moses by their acceptance of his leadership in the Exodus. By passing through the Red Sea at his command they definitely renounced Pharaoh and abandoned their old life, and as definitely pledged and committed themselves to throw in their lot with Moses. By passing the Egyptian frontier and following the guidance of the pillar of cloud they professed their willingness to exchange a life of bondage, with its security and occasional luxuries, for a life of freedom, with its hazards and hardships; and by that passage of the Red Sea they were as certainly sworn to support and obey Moses as ever was Roman soldier who took the oath to serve his emperor. When, at Brederode's invitation, the patriots of Holland put on the beggar's wallet and tasted wine from the beggar's bowl, they were baptized unto William of Orange and their country's cause. When the sailors on board the _Swan_ weighed anchor and beat out of Plymouth they were baptized unto Drake and pledged to follow him and fight for him to the death. Baptism means much; but if it means anything, it means that we commit and pledge ourselves to the life we are called to by Him in whose name we are baptized. It draws a line across the life, and proclaims that to whomsoever in time past we have been bound, and for whatsoever we have lived, we now are pledged to this new Lord, and are to live in His service. Such a pledge was given by every Israelite who turned his back on Egypt and passed through that sea which was the defence of Israel and destruction to the enemy. The crossing was at once actual deliverance from the old life and irrevocable committal to the new. They died to Pharaoh, and were born again to Moses. They were baptized unto Moses.