The mark chosen was significant. It was indeed not distinctive in its outward form; so little so that at this day no fewer than one hundred and fifty millions of the race make use of the same rite for one purpose or other. All the descendants of Ishmael of course continue it, but also all who have their religion, that is, all Mohammedans; but besides these, some tribes in South America, some in Australia, some in the South Sea Islands, and a large number of Kaffir tribes. The ancient Egyptians certainly practised it, and it has been suggested that Abraham may have become acquainted with the practice during his sojourn in Egypt. It is however uncertain whether the practice in Egypt runs back to so early a time. If it were an established Egyptian usage, then of course Hagar would demand for her boy at the usual age the rite which she had always associated with entrance on a new stage of life. But even supposing this was the case, the rite was none the less available for the new use to which it was now put. The rainbow existed before the Flood; bread and wine existed before the night of the Lord's Supper; baptisms of various kinds were practised before the days of the Apostles. And for this very reason, when God desired a natural emblem of the stability of the seasons He chose a striking feature of nature on which men were already accustomed to look with pleasure and hope; when He desired symbols of the body and blood of the Redeemer He took those articles which already had a meaning as the most efficacious human nutriment; when He desired to represent to the eye the renunciation of the old life and the birth to a new life which we have by union with Christ, He took that rite which was already known as the badge of discipleship; and when He desired to impress men by symbol with the impurity of nature and with our dependence on God for the production of all acceptable life, He chose that rite which, whether used before or not, did most strikingly represent this.