1 Now Yahweh had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father's house, unto a land that I will shew thee:
At the command of God, Abraham severed all his connections with his home and his native land, and went forth in simple faith, "not knowing whither he went."
Abraham's outstanding characteristic was faith. He is presented to us as the pre-eminent example in this respect --
"The Father of the Faithful."
Faith that hesitated at nothing and rose triumphant above every obstacle and natural sentiment and desire.
It is one thing to be so vividly convinced of God's closeness and reality as to be able to defy universal opinion and -- dropping everything -- to follow an unseen Voice through strange, wild lands for 1,000 miles with no idea of the destination or perils of the way.
It is an even far greater thing to wait more than twenty-five years in that alien land for even the first beginnings of the fulfillment of the promise that had drawn him forth. What were Abraham's thoughts as year after year rolled by, each one making the realization of the promise appear even less possible? He waited in faith.
Bro Growcott - Shall a child be born.
10 And there was a famine in the land: and Abram went down into Egypt to sojourn there; for the famine was grievous in the land.
Leaving his country and kindred at God's first call, and finally reaching the promised land, he had immediately encountered famine, and faced the prospect of starvation (Gen. 12:10). In search of food, he left the land and went to Egypt.
Should he have gone to Egypt or not? It is hard to say. Perhaps it was a well-meaning error of judgment, a misguided human effort to help along the Divine Plan, like the later attempt to provide a seed through Hagar. Perhaps, having been instructed by God to go to Canaan he should have stayed there until further directed, relying on God to provide. Later, in identical circumstances of famine (Gen. 26:2), Isaac is specifically warned not to go to Egypt, but to stay in God's land and trust to His care.
Looking back, we can see the spiritual significance in these instances, and it appears that Abraham's lessons and experiences are intended as a guide and warning to us. At any rate, he soon found that Egypt held greater perils than famine, and only the intervention of God averted a catastrophe (Gen. 12:15-20).
Bro Growcott - 'Shall a child be born'