Then Abram removed his tent, and came and dwelt in the plain of Mamre, which is in Hebron, and built there an altar unto the LORD.

Wesley's Notes

13:18 Then Abram removed his tent - God bid him walk through the land, that is, Do not think of fixing in it, but expect to be always unsettled, and walking through it to a better Canaan; in compliance with God's will herein, he removed his tent, conforming himself to the condition of a pilgrim. And he built there an altar - in token of his thankfulness to God for the kind visit he had made him.

King James Translators' Notes

plain: Heb. plains

Jamieson-Fausset-Brown Bible Commentary

18. the plain of Mamre . built . an altar-the renewal of the promise was acknowledged by Abram by a fresh tribute of devout gratitude.

Matthew Henry's Concise Commentary

13:14-18 Those are best prepared for the visits of Divine grace, whose spirits are calm, and not ruffled with passion. God will abundantly make up in spiritual peace, what we lose for preserving neighbourly peace. When our relations are separated from us, yet God is not. Observe also the promises with which God now comforted and enriched Abram. Of two things he assures him; a good land, and a numerous issue to enjoy it. The prospects seen by faith are more rich and beautiful than those we see around us. God bade him walk through the land, not to think of fixing in it, but expect to be always unsettled, and walking through it to a better Canaan. He built an altar, in token of his thankfulness to God. When God meets us with gracious promises, he expects that we should attend him with humble praises. In outward difficulties, it is very profitable for the true believer to mediate on the glorious inheritance which the Lord has for him at the last.