17By faith Abraham, when he was tested [that is, as the testing of his faith was still in progress], offered up Isaac, and he who had received the promises [of God] was ready to sacrifice his only son [of promise]; [Gen 22:1-10]
17Abraham had faith. So when God tested him, Abraham offered Isaac as a sacrifice. Abraham had held on tightly to the promises. But he was about to offer his one and only son.
17Here is another example of Abraham's faith. God wanted to see whether Abraham really trusted him. Because Abraham believed God, he offered his son, Isaac, as a sacrifice. God had promised Abraham that he would have many descendants. But Abraham was still ready to offer his only son as a sacrifice.