With Abraham there is also introduced the first step in a new method adopted by God in the training of men. The dispersion of men and the divergence of their languages are now seen to have been the necessary preliminary to this new step in the education of the world – the fencing round of one people till they should learn to know God and understand and exemplify His government. It is true, God reveals Himself to all men and governs all; but by selecting one race with special adaptations, and by giving to it a special training, God might more securely and more rapidly reveal Himself to all. Each nation has certain characteristics, a national character which grows by seclusion from the influences which are forming other races. There is a certain mental and moral individuality stamped upon every separate people. Nothing is more certainly retained; nothing more certainly handed down from generation to generation. It would therefore be a good practical means of conserving and deepening the knowledge of God, if it were made the national interest of a people to preserve it, and if it were closely identified with the national characteristics. This was the method adopted by God. He meant to combine allegiance to Himself with national advantages, and spiritual with national character, and separation in belief with a distinctly outlined and defensible territory.
This method, in common with all Divine methods, was in strict keeping with the natural evolution of history. The migration of Abraham occurred in the epoch of migrations. But although for centuries before Abraham new nations had been forming, none of them had belief in God as its formative principle. Wave upon wave of warriors, shepherds, colonists have left the prolific plains of Mesopotamia. Swarm after swarm has left that busy hive, pushing one another further and further west and east, but all have been urged by natural impulses, by hunger, commerce, love of adventure and conquest. By natural likings and dislikings, by policy, and by dint of force the multitudinous tribes of men were finding their places in the world, the weaker being driven to the hills, and being schooled there by hard living till their descendants came down and conquered their conquerors. All this went on without regard to any very high motives. As it was with the Goths who invaded Italy for her wealth, as it is now with those who people America and Africa because there is land or room enough, so it was then. But at last God selects one man and says, “I will make of thee a great nation.” The origin of this nation is not facile love of change nor lust of territory, but belief in God. Without this belief this people had not been. No other account can be given of its origin. Abraham is himself already the member of a tribe, well-off and likely to be well-off; he has no large family to provide for, but he is separated from his kindred and country, and led out to be himself a new beginning, and this because, as he himself throughout his life said, he heard God’s call and responded to it.
The city which claims the distinction of being Abraham’s birthplace, or at least of giving its name to the district where he was born, is now represented by a few mounds of ruins rising out of the flat marshy ground on the western bank of the Euphrates, not far above the point where it joins its waters to those of the Tigris and glides on to the Persian gulf. In the time of Abraham, Ur was the capital city which gave its name to one of the most populous and fertile regions of the earth. The whole land of Accad which ran up from the sea-coast to Upper Mesopotamia (or Shinar) seems to have been known as Ur-ma, the land of Ur. This land was of no great extent, being little if at all larger than Scotland, but it was the richest of Asia. The high civilisation which this land enjoyed even in the time of Abraham has been disclosed in the abundant and multifarious Babylonian remains which have recently been brought to light.
What induced Terah to abandon so prosperous a land can only be conjectured. It is possible that the idolatrous customs of the inhabitants may have had something to do with his movements. For while the ancient Babylonian records reveal a civilisation surprisingly advanced, and a social order in some respects admirable, they also make disclosures regarding the worship of the gods which must shock even those who are familiar with the immoralities frequently fostered by heathen religions. The city of Ur was not only the capital, it was the holy city of the Chaldeans. In its northern quarter rose high above the surrounding buildings the successive stages of the temple of the moon-god, culminating in a platform on which the priests could both accurately observe the motions of the stars and hold their night-watches in honour of their god. In the courts of this temple might be heard breaking the silence of midnight, one of those magnificent hymns, still preserved, in which idolatry is seen in its most attractive dress, and in which the Lord of Ur is invoked in terms not unworthy of the living God. But in these same temple-courts Abraham may have seen the firstborn led to the altar, the fruit of the body sacrificed to atone for the sin of the soul; and here too he must have seen other sights even more shocking and repulsive. Here he was no doubt taught that strangely mixed religion which clung for generations to some members of his family. Certainly he was taught in common with the whole community to rest on the seventh day; as he was trained to look to the stars with reverence and to the moon as something more than the light which was set to rule the night.
Possibly then Terah may have been induced to move northwards by a desire to shake himself free from customs he disapproved. The Hebrews themselves seem always to have considered that his migration had a religious motive. “This people,” says one of their old writings, “is descended from the Chaldeans, and they sojourned heretofore in Mesopotamia because they would not follow the gods of their fathers which were in the land of Chaldea. For they left the way of their ancestors and worshipped the God of heaven, the God whom they knew; so they cast them out from the face of their gods, and they fled into Mesopotamia and sojourned there many days. Then their God commanded them to depart from the place where they sojourned and to go into the land of Canaan.” But if this is a true account of the origin of the movement northwards, it must have been Abraham rather than his father who was the moving spirit of it; for it is certainly Abraham and not Terah who stands as the significant figure inaugurating the new era.
If doubt rests on the moving cause of the migration from Ur, none rests on that which prompted Abraham to leave Charran and journey towards Canaan. He did so in obedience to what he believed to be a Divine command, and in faith on what he understood to be a Divine promise. How he became aware that a Divine command thus lay upon him we do not know. Nothing could persuade him that he was not commanded. Day by day he heard in his soul what he recognised as a Divine voice, saying: “Get thee out of thy country and from thy kindred and from thy father’s house, unto a land that I will show thee!” This was God’s first revelation of Himself to Abraham. Up to this time Abraham to all appearance had no knowledge of any God but the deities worshipped by his fathers in Chaldea. Now, he finds within himself impulses which he cannot resist and which he is conscious he ought not to resist. He believes it to be his duty to adopt a course which may look foolish and which he can justify only by saying that his conscience bids him. He recognises, apparently for the first time, that through his conscience there speaks to him a God Who is supreme. In dependence on this God he gathered his possessions together and departed.
So far, one may be tempted to say, no very unusual faith was required. Many a poor girl has followed a weakly brother or a dissipated father to Australia or the wild west of America; many a lad has gone to the deadly west coast of Africa with no such prospects as Abraham. For Abraham had the double prospect which makes migration desirable. Assure the colonist that he will find land and have strong sons to till and hold and leave it to, and you give him all the motive he requires. These were the promises made to Abraham – a land and a seed. Neither was there at this period much difficulty in believing that both promises would be fulfilled. The land he no doubt expected to find in some unoccupied territory. And as regards the children, he had not yet faced the condition that only through Sarah was this part of the promise to be fulfilled.
But the peculiarity in Abraham’s abandonment of present certainties for the sake of a future and unseen good is, that it was prompted not by family affection or greed or an adventurous disposition, but by faith in a God Whom no one but himself recognised. It was the first step in a life-long adherence to an Invisible, Spiritual Supreme. It was that first step which committed him to life-long dependence upon and intercourse with One Who had authority to regulate his movements and power to bless him.