And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age.

Wesley's Notes

15:15 Thou shalt go to thy fathers - At death we go to our fathers, to all our fathers that are gone before us to the state of the dead, to our godly fathers that are gone before us to the state of the blessed. The former helps to take off the terror of death, the latter puts comfort into it. Thou shalt be buried in a good old age - Perhaps mention is made of his burial here, where the land of Canaan is promised him, because a burying - place was the first possession he had in it. Old age is a blessing, if it be a good old age: theirs may be called a good old age, That are old and healthful, not loaded with such distempers as make them weary of life: That are old and holy, whose hoary head is found in the way of righteousness, old and useful, old and exemplary for godliness, that is indeed a good old age.

Matthew Henry's Concise Commentary

15:12-16 A deep sleep fell upon Abram; with this sleep a horror of great darkness fell upon him: a sudden change. The children of light do not always walk in the light. Several things were then foretold. 1. The suffering state of Abram's seed for a long time. They shall be strangers. The heirs of heaven are strangers on earth. They shall be servants; but Canaanites serve under a curse, the Hebrews under a blessing. They shall be suffers. Those that are blessed and beloved of God, are often sorely afflicted by wicked men. 2. The judgment of the enemies of Abram's seed. Though God may allow persecutors and oppressors to trample upon his people a great while, he will certainly reckon with them at last. 3. That great event, the deliverance of Abram's seed out of Egypt, is here foretold. 4. Their happy settlement in Canaan. They shall come hither again. The measure of sin fills gradually. Some people's measure of sin fills slowly. The knowledge of future events would seldom add to our comfort. In the most favoured families, and most happy lives, there are so many afflictions, that it is merciful in God to conceal what will befall us and ours.