Now faith is the assurance of things hoped for, the conviction of things not seen. Indeed, by faith our ancestors received approval. By faith we understand that the worlds were prepared by the word of God, so that what is seen was made from things that are not visible. All of these died in faith without having received the promises, but from a distance they saw and greeted them. They confessed that they were strangers and foreigners on the earth, for people who speak in this way make it clear that they are seeking a homeland. If they had been thinking of the land that they had left behind, they would have had opportunity to return. But as it is, they desire a better country, that is, a heavenly one. Therefore God is not ashamed to be called their God; indeed, he has prepared a city for them. By faith Abraham, when put to the test, offered up Isaac. He who had received the promises was ready to offer up his only son, of whom he had been told, “It is through Isaac that descendants shall be named for you.” He considered the fact that God is able even to raise someone from the dead—and figuratively speaking, he did receive him back.