Charles Spurgeon Commentary Hebrews 11:8-18

"By faith Abraham, when he was called, obeyed to go out unto a place which he was to receive for an inheritance; and he went out, not knowing whither he went. By faith he became a sojourner in the land of promise, as in a [land] not his own, dwelling in tents, with Isaac and Jacob, the heirs with him of the same promise: for he looked for the city which hath the foundations, whose builder and maker is God. By faith even Sarah herself received power to conceive seed when she was past age, since she counted him faithful who had promised: wherefore also there sprang of one, and him as good as dead, [so many] as the stars of heaven in multitude, and as the sand, which is by the sea-shore, innumerable. These all died in faith, not having received the promises, but having seen them and greeted them from afar, and having confessed that they were strangers and pilgrims on the earth. For they that say such things make it manifest that they are seeking after a country of their own. And if indeed they had been mindful of that [country] from which they went out, they would have had opportunity to return. But now they desire a better [country], that is, a heavenly: wherefore God is not ashamed of them, to be called their God; for he hath prepared for them a city. By faith Abraham, being tried, offered up Isaac: yea, he that had gladly received the promises was offering up his only begotten [son]; even he to whom it was said, In Isaac shall thy seed be called:" — Hebrews 11:8-18 (ASV)

By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out not knowing whither he went. By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise: for he looked for a city which hath foundations, whose builder and maker is God. Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised. Therefore sprang there even of one, and him as good as dead, so many as the stars of the sky in multitude, and as the sand which is by the sea shore innumerable. These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth. For they that say such things declare plainly that they seek a country. And truly, if they had been mindful of that country from whence they came out, they might have had opportunity to have returned. But now they desire a better country, that is, an heavenly: wherefore God is not ashamed to be called their God for he hath prepared for them a city. By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son, of whom it was said, That in Isaac shall thy seed be called:

The great trouble of Abraham was not his fatherly instinct, hard as it was to overcome that, and to be the slayer of his only son. His great difficulty was: "How can God's promise be kept? He has given me a promise that in Isaac shall my seed be called, yet he tells me to offer up my son. How can this be?" But by faith he did it—