And the LORD appeared unto Abram, and said, Unto thy seed will I give this land: and there builded he {g} an altar unto the LORD, who appeared unto him.

(g) It was not enough for him to worship God in his heart, but it was expedient to declare by outward profession his faith before men, of which this altar was a sign.

Wesley's Notes

12:7 And the Lord appeared to Abram - Probably in a vision, and spoke to him comfortable words; Unto thy seed will I give this land - No place or condition can shut us out from God's gracious visits. Abram is a sojourner, unsettled, among Canaanites, and yet here also he meets with him that lives, and sees him. Enemies may part us and our tents, us and our altars, but not us and our God.

Scofield Reference Notes

Margin appeared

The theophanies. Gen 17:1 12:7 Rev 1:10.

Jamieson-Fausset-Brown Bible Commentary

7. Unto thy seed will I give this land-God was dealing with Abram not in his private and personal capacity merely, but with a view to high and important interests in future ages. That land his posterity was for centuries to inhabit as a peculiar people; the seeds of divine knowledge were to be sown there for the benefit of all mankind; and considered in its geographical situation, it was chosen in divine wisdom as the fittest of all lands to serve as the cradle of a divine revelation designed for the whole world.

and there builded he an altar unto the Lord-By this solemn act of devotion Abram made an open profession of his religion, established the worship of the true God, and declared his faith in the promise.

Matthew Henry's Concise Commentary

12:6-9 Abram found the country peopled by Canaanites, who were bad neighbours. He journeyed, going on still. Sometimes it is the lot of good men to be unsettled, and often to remove into various states. Believers must look on themselves as strangers and sojourners in this world, Heb 11:8,13,14. But observe how much comfort Abram had in God. When he could have little satisfaction in converse with the Canaanites whom he found there, he had abundance of pleasure in communion with that God, who brought him thither, and did not leave him. Communion with God is kept up by the word and by prayer. God reveals himself and his favours to his people by degrees; before, he had promised to show Abram this land, now, to give it to him: as grace is growing, so is comfort. It should seem, Abram understood it also as a grant of a better land, of which this was a type; for he looked for a heavenly country, Heb 11:16. As soon as Abram was got to Canaan, though he was but a stranger and sojourner there, yet he set up, and kept up, the worship of God in his family. He not only minded the ceremonial part of religion, the offering of sacrifice; but he made conscience of seeking his God, and calling on his name; that spiritual sacrifice with which God is well pleased. He preached concerning the name of the Lord; he taught his family and neighbours the knowledge of the true God, and his holy religion. The way of family worship is a good old way, no new thing, but the ancient usage of the saints. Abram was rich, and had a numerous family, was now unsettled, and in the midst of enemies; yet, wherever he pitched his tent, he built an altar: wherever we go, let us not fail to take our religion along with us.